/* 首页样式  */
/* ----------------------------------- layout ----------------------------------- */
* {
    margin: 0;
    padding: 0;
}
body {
    background: #ffffff;
    font-size: 13px; 
    font-family: -apple-system, BlinkMacSystemFont, 'Helvetica Neue', 'PingFang SC', 'Microsoft YaHei', 'Source Han Sans SC', 'Noto Sans CJK SC', 'WenQuanYi Micro Hei', sans-serif;
}
ol,ul {
    list-style: none;
}
a {
    text-decoration: none;
    color: #900b09;
}
a:hover {
    color: #ff0000;
}
img {
    border: 0;
}
a,input,textarea,button {
    outline: 0;
}
.icon-img,.img-icon  {
    display: inline-block;
    width: 16px;
    height: 16px;
    vertical-align: middle;
    margin-right: 5px;
}
.pull-left {
    float: left;
}
.pull-right {
    float: right;
}
.down-icon1 {
    display: inline-block;
    width: 10px;
    height: 10px;
    margin-left: 5px;
}
.angle-down-icon {
    background: url("//7nsts.w3cschool.cn/yimages/icon-angle-down1.png") no-repeat scroll 0% 0%;
}
.vip-sicon {
    display: inline-block;
    width: 24px;
    height: 24px;
    vertical-align: middle;
    background-size: 24px 24px;
}
.vip-sicon0 {
    background-image: url("//7nsts.w3cschool.cn/images/w3c/vip-sicon0.png");
}
.vip-sicon1 {
    background-image: url("//7nsts.w3cschool.cn/images/w3c/vip-sicon1.png");
}
.vip-sicon2 {
    background-image: url("//7nsts.w3cschool.cn/images/w3c/vip-sicon2.png");
}
.new-icon {
    position: absolute;
    top: 6px;
    right: -6px;
    display: inline-block;
    width: 22px;
    height: 14px;
    background: url("//7nsts.w3cschool.cn/images/w3c/icon-new.gif") no-repeat scroll 0px 0px;
}
.hot-icon {
    position: absolute;
    top: 5px;
    right: -2px;
    display: inline-block;
    width: 21px;
    height: 16px;
    background: url("//7nsts.w3cschool.cn/images/w3c/icon-hot.gif") no-repeat scroll 0px 0px;
}
.double11-icon {
    position: absolute;
    top: 0;
    right: -16px;
    display: inline-block;
    width: 32px;
    height: 17px;
    background: url("//7nsts.w3cschool.cn/images/w3c/double11-tag.png") no-repeat scroll 0px 0px;
}
.tag-icon {
    display: inline-block;
    position: absolute;
    right: -12px;
    top: -2px;
    min-width: 36px;
    padding: 2px;
    background-color: #ffa01a;
    border-radius: 4px;
    font-size: 14px;
    color: #fff;
    text-align: center;
    transform: scale(.6);
    -ms-transform: scale(.6);     /* IE 9 */
    -moz-transform: scale(.6);    /* Firefox */
    -webkit-transform: scale(.6); /* Safari 和 Chrome */
    -o-transform: scale(.6);  /* Opera */
}
.tag-icon:before {
    content: "";
    display: block;
    width: 0;
    height: 0;
    border: 5px solid transparent;
    border-top-color: #ffa01a;
    position: absolute;
    bottom: -9px;
    left: 15%;
}
.free-icon {
    background-color: #7ed321;
}
.free-icon:before {
    border-top-color: #7ed321;
}
.dropdown-content {
    position: absolute;
    left: -60px;
    top: 80%;
    background-color: #fff;
    padding: 9px 0;
    width: 150px;
    z-index: 1200;
    border: 1px solid #eee;
    box-shadow: 0 0 5px 2px rgba(0,0,0,0.1);
    border-radius: 4px;
}
.dropdown-content .j {
    position: absolute;
    left: 50%;
    top: -16px;
    margin-left: -8px;
    display: block;
}
.dropdown-content .j::before,.dropdown-content .j::after {
    content: "";
    display: block;
    width: 0;
    height: 0;
    border-width: 8px;
    border-style: solid;
    position: absolute;
    left: 0;
    top: 0;
}
.dropdown-content .j::before {
    border-color: transparent transparent #ddd transparent;
}
.dropdown-content .j::after {
    border-color: transparent transparent #fff transparent;
    top: 1px;
}
.top-banner {
    width: 100%;
    min-width: 1130px;
    background-color: #fffdf0;
    border-bottom: 1px solid #faebcc;
    text-align: center;
}

/* ----------------------------------- header ----------------------------------- */
#header_item {
    width: 100%;
    position: relative;
    margin-bottom: 20px;
}
#header_index {
    margin: 0 auto;
    width: 1130px;
    height: 80px;
    line-height: 80px;
}
#header-l {
    float: left;
    width: 70%;
    height: 80px;
}
#header-r {
    float: right;
    width: 30%;
    height: 80px;
}
#header_index h1 {
    float: left;
    background: url("https://7nsts.w3cschool.cn/images/w3c/index-logo.png?t=20190423") no-repeat scroll 0px 0px;
    width: 228px;
    height: 60px;
    text-indent: -9999px;
    margin: 16px 0;
}
#header_index .logo {
    display: block;
    width: 228px;
    height: 60px;
}
.sig-box {
    float: right;
}
.sig-box a {
    font-size: 15px;
    color: #333;
}
.sig-box a:hover {
    color: #900b09;
}
.sig-box-info .sig-line {
    padding: 0 4px;
}
.header-app {
    position: relative;
    float: right;
    height: 25px;
    line-height: 25px;
    padding-left: 25px;
    background: url("//7nsts.w3cschool.cn/images/w3c/header-app.png?t=20171221") no-repeat 0px 0px;
    font-size: 15px;
    color: #333;
    margin: 28px 15px 0 0;
}
.header-app:hover {
    color: #AE4141;
}
.qrcode-box {
    display: none;
    top: 30px;
    left: -98px;
    width: 340px;
    padding: 15px 10px;
}
.header-app:hover .qrcode-box {
    display: block;
}
.qrcode-img {
    display: inline-block;
    float: left;
    width: 170px;
    text-align: center;
}
.qrcode-img p {
    font-size: 15px;
    color: #333;
}
.qrcode-box .j {
    left: 40%;
}
.create-btn {
    float: right;
    width: 64px;
    height: 30px;
    line-height: 30px;
    border: 1px solid #900b09;
    background-color: transparent;
    margin: 25px 15px 0 0;
    border-radius: 4px;
    text-align: center;
}
.create-btn:hover {
    border: 1px solid #ae4141;
    background-color: #ae4141;
    color: #fff;
}
/* header已登录样式  */
#header_notification_bar,#dropdown-user{
    display: inline-block;
    position: relative;
}
.dropdown-toggle-list {
    display: inline-block;
    color: #333;
}
.dropdown-toggle-list img {
    display: inline-block;
    width: 30px;
    height: 30px;
    border-radius: 50%;
    margin: 0 5px 0 0;
    vertical-align: middle;
}
.dropdown-list li {
    height: 26px;
    line-height: 26px;
}
.dropdown-list a {
    display: block;
    color: #333;
    padding-left: 10px;
}
.dropdown-list a:hover {
    color: #900b09;
}
.dropdown-list .sns-icon {
    display: inline-block;
    width: 16px;
    height: 16px;
    background-position: 0px 0px;
    background-repeat: no-repeat;  
    vertical-align: -2px; 
}
.home-icon {
    background-image: url("//7nsts.w3cschool.cn/yimages/icon-home1.png");
}
.cog-icon {
    background-image: url("//7nsts.w3cschool.cn/yimages/icon-cog1.png");
}
.key-icon {
    background-image: url("//7nsts.w3cschool.cn/yimages/icon-key1.png");
}
.note-icon {
    background-image: url("//7nsts.w3cschool.cn/yimages/icon-note1.png?201805");
}
.user-icon {
    background-image: url("//7nsts.w3cschool.cn/yimages/icon-user1.png");
}
.mycv-icon {
    background-image: url("//7nsts.w3cschool.cn/yimages/icon-mycv1.png");
}
.signout-icon {
    background-image: url("//7nsts.w3cschool.cn/yimages/icon-signout1.png");
}
.dropdown-list a:hover .home-icon {
    background-image: url("//7nsts.w3cschool.cn/yimages/icon-home2.png");
}
.dropdown-list a:hover .cog-icon {
    background-image: url("//7nsts.w3cschool.cn/yimages/icon-cog2.png");
}
.dropdown-list a:hover .key-icon {
    background-image: url("//7nsts.w3cschool.cn/yimages/icon-key2.png");
}
.dropdown-list a:hover .note-icon {
    background-image: url("//7nsts.w3cschool.cn/yimages/icon-note2.png?201805");
}
.dropdown-list a:hover .user-icon {
    background-image: url("//7nsts.w3cschool.cn/yimages/icon-user2.png");
}
.dropdown-list a:hover .mycv-icon {
    background-image: url("//7nsts.w3cschool.cn/yimages/icon-mycv2.png");
}
.dropdown-list a:hover .signout-icon {
    background-image: url("//7nsts.w3cschool.cn/yimages/icon-signout2.png");
}
.dropdown-list .divider{
    background-color: #e5e5e5;
    height: 1px;
    margin: 9px 0;
    overflow: hidden;   
}
/* 消息通知  */
#header_notification_bar {
    margin-right: 15px;
}
#header_notification_bar .notice-icon {
    background: url("//7nsts.w3cschool.cn/images/w3c/notice-icon.png") no-repeat scroll 0px 0px;
    display: inline-block;
    width: 20px;
    height: 20px;
    vertical-align: middle;
}
#header_notification_bar .badge {
    display: inline-block;
    line-height: 1;
    background-color: #999;
    color: #fff;
    padding: 3px 7px;
    border-radius: 10px;
    font-size: 12px;
    text-align: center;
    white-space: nowrap;
}
#header_notification_bar .badge-danger{
    background-color: #ed4e2a;
}
.dropdown-content.extended {
    width: 160px;
    padding: 0;
    top: 75%;
}
.dropdown-content.extended li {
    height: auto;
    line-height: 25px;
    position: relative;
    padding: 0;
}
.dropdown-content.extended li p {
    padding: 10px;
    margin: 0;
    font-size: 14px;
    color: #333;
}
.dropdown-content.extended li a {
    display: block;
    width: auto;
    padding: 10px;
    border-top: 1px solid #f4f4f4;
    line-height: 20px;
    font-size: 14px;
    color: #333;
}
.dropdown-content.extended li a:hover {
    background-color: #f5f5f5;
    color: #900b09;
}
.dropdown-content.extended li span {
    float: right;
}
.dropdown-content.extended li span.badge-danger {
    background-color: #57b5e3 !important;
}

/* ----------------------------------- footer ----------------------------------- */
#footer_item {
    width: 100%;
    min-width: 1130px;
    background: #efefef;
    border-top: 1px solid #ccc;
    padding: 20px 0;
}
#footer {
    clear: both;
    position: relative;
    margin: 0 auto;
    width: 1130px;
    height: auto;
    overflow: hidden;
}
.footer-box {
    float: left;
    width: 19%;
    margin-left: 1%;
    text-align: left;
}
.footer-title {
    font-size: 15px;
    font-weight: 600;
    color: #333;
    margin-bottom: 5px;
    line-height: 30px;
}
.footer-items a,.footer-items p {
    line-height: 26px;
    font-size: 14px;
    color: #333;
}
.footer-items p {
    margin: 0;
}
.footer-box .tcode {
    width: 100px;
    height: 100px;
    margin: 10px auto;
}
.footer-box .tcode-txt {
    font-size: 14px;
    color: #333;
    text-align: center;
    margin: 0 10px;
}
.footer-bottom {
    margin: 0px auto;
    width: 1130px;
    padding: 10px 0 0;
    text-align: center;
    line-height: 30px;
}
.footer-bottom p {
    font-size: 14px;
    color: #333;
    line-height: 30px;
}
#footer a:hover,.footer-bottom a:hover {
    text-decoration: underline;
    color: #ff0000;
}

/* ----------------------------------- search form ----------------------------------- */
#header_index .searchbox {
    float: left;
    position: relative;
    width: 462px;
    height: 36px;
    line-height: 36px;
    margin: 24px 0 0 90px;
    background: #FFF;
    border-radius: 2px;
    text-align: left;
    border: 2px solid #AE4141;
}
#header_index .searchbox input.box {
    width: 386px;
    height: 34px;
    line-height: 34px;
    font-size: 14px;
    background: #fff;
    color: #666;
    border: none;
    padding: 0 8px;
    margin: 0;
}
#header_index .searchbox .button {
    position: absolute;
    top: 0;
    right: 0;
    width: 60px;
    height: 36px;
    border: none;
    background: #AE4141 url("//7nsts.w3cschool.cn/images/w3c/search-icon.png") no-repeat scroll center center;
    text-indent: -9999px;
    cursor: pointer;
}
.search-sort-item {
    position: absolute;
    width: 62px;
    height: 36px;
    cursor: pointer;
    border-right: 1px solid #DDD;
}
.search-set {
    display: block;
    height: 36px;
    line-height: 36px;
    text-indent: 10px;
    font-size: 14px;
    color: #333;
}
.search-set i {
    position: absolute;
    top: 15px;
    right: 10px;
    border-width: 5px;
    border-style: solid dashed dashed;
    border-color: #666 transparent transparent;
}
.search-sort-list {
    position: absolute;
    width: 61px;
    height: auto;
    background: #fff;
    z-index: 100;
    border: 1px solid #DDD;
    border-top: none;
    display: none;
}
.search-sort-list li {
    display: block;
    width: 100%;
    height: 30px;
    line-height: 30px;
    text-indent: 10px;
    font-size: 14px;
}
.search-set:hover,.search-sort-list li:hover {
    color: #900b09;
}
.search-set:hover i {
    border-color: #AE4141 transparent transparent;
}

/* 第三方登录样式   */
.pop-sns {
    display: inline-block;
    width: 30px;
    height: 30px;
    margin-right: 2px;
    vertical-align: middle;
    content: none !important;
    background-image: url("//7nsts.w3cschool.cn/images/w3c/sns-sprite.png");
    background-repeat: no-repeat;
}
.quicklogin a {
    display: inline-block;
    line-height: 35px;
    padding: 0 10px;
    font-size: 14px;
    color: #666;
}
.quicklogin a:hover,.pop-login-sns a:hover {
    color: #333;
}
.icons-qq {
    background-position: 0px 0px;
}
.icons-weixin {
    background-position: -30px 0px;
}
.icons-weibo {
    background-position: -60px 0px;
}
.icons-right {
    background-position: -90px 0px;
}
.weixinlogin {
    display: none;
    position: absolute;
    top: -210px;
    left: 0;
    background-color: #fff;
    box-shadow: 2px 2px 2px #ccc;
}
.pop-login-sns a:hover .icons-qq {
    background-position: 0px -30px;
}
.pop-login-sns a:hover .icons-weixin {
    background-position: -30px -30px;
}
.pop-login-sns a:hover .icons-weibo {
    background-position: -60px -30px;
}
.pop-login-sns a:hover .icons-right {
    background-position: -90px -30px;
}

/* 首页轮播banner */
.slide-main {
    width: 100%;
    min-width: 1130px;
}
.nav-menu-banner {
    width: 914px;
    height: 50px;
    margin: 0 auto;
    position: relative;
    left: 107px;
}
.nav-menu-list {
    margin-left: 11px;
}
.nav-menu-list li {
    position: relative;
    float: left;
    padding: 14px 15px;
}
.nav-menu-list li a {
    font-size: 16px;
    color: #333;
}
.nav-menu-list li a:hover {
    color: #900b09;
}
.nav-menu-list .dropdown-content {
    display: none;
    top: 42px;
    left: -25px;
    width: 235px;
}
.nav-menu-list .dropdown:hover .dropdown-content {
    display: block;
}
.nav-menu-list .dropdown-content a {
    width: 100px;
    padding: 0 0 0 10px;
    height: 40px;
    line-height: 40px;
    display: inline-block;
    font-size: 15px;
    color: #333;
    text-align: center;
}
.nav-menu-list .dropdown-content a:first-child::before {
    border-bottom: 8px solid #fff;
    border-left: 8px solid rgba(255, 255, 255, 0);
    border-right: 8px solid rgba(255, 255, 255, 0);
    top: -8px;
    content: "";
    width: 0;
    height: 0;
    left: 45%;
    margin-left: -50px;
    position: absolute;
}
.slide-box {
    position: relative;
    height: 300px;
    overflow: visible;
/*  background: #f5f5f5;*/
}
.slide-btn {
    position: relative;
    width: 1130px;
    margin: 0 auto;
}
/* 教程分类 */
.menu-wrapper {
    position: absolute;
    top: -50px;
    left: 0;
    z-index: 1000;
}
.menu-content {
    width: 216px;
}
.menu-title {
    width: 216px;
    height: 50px;
    background-color: #AE4141;
    border-top-left-radius: 4px;
    border-top-right-radius: 4px;
}
.menu-title a {
    display: inline-block;
    width: 186px;
    height: 50px;
    line-height: 50px;
    padding: 0px 15px;
    font-size: 16px;
    color: #FFF;
}
.menu-title .icon-menu {
    display: inline-block;
    vertical-align: 4px;
    width: 18px;
    height: 2px;
    margin-right: 10px;
    position: relative;
    background: #fff;
}
.menu-title .icon-menu:before,.menu-title .icon-menu:after {
    content: "";
    width: 100%;
    height: 2px;
    position: absolute;
    top: -7px;
    left: 0;
    background: #fff;
}
.menu-title .icon-menu:after {
    top: 7px;
}
.menu-title h2 {
    display: inline;
    font-size: 16px;
    font-weight: 400;
}
.menu-sort-list {
    background-color: #FFF;
    border: 1px solid #eee;
    border-top: none;
}
.menu-sort-list li {
    position: relative;
    width: 214px;
    height: 70px;
    border-bottom: 1px solid #E6E6E6;
    cursor: pointer;
}
.menu-sort-list li.active {
    background-color: #F5F5F5;
}
.menu-sort-list li:last-child {
    border-bottom: none;
}
.menu-item-first h3 {
    display: inline-block;
    vertical-align: middle;
    height: 24px;
    line-height: 24px;
    padding: 11px 15px 0;
    font-size: 16px;
    font-weight: 400;
}
.menu-item-first a,.menu-item-second a {
    color: #900b09;
}
.hd-arr {
    background: url("//7nsts.w3cschool.cn/yimages/hd_arr.gif") no-repeat scroll 0 0;
    position: absolute;
    display: block;
    width: 6px;
    height: 11px;
    left: 190px;
    top: 20px;
}
.menu-item-hot {
    padding: 3px 0 10px 15px;
    height: 16px;
    overflow: hidden;
}
.menu-item-hot a {
    display: inline-block;
    vertical-align: middle;
    margin-right: 8px;
    font-size: 14px;
    color: #333;
}
.menu-item-box {
    background-color: #FFF;
    position: absolute;
    top: 50px;
    left: 214px;
    min-height: 422px;
    border: 2px solid #eee;
    padding: 0 15px 0 30px;
    z-index: 1000;
    display: none;
}
.menu-item-list {
    width: 650px;
}
.menu-item-list li {
    padding: 15px 0 12px;
    border-bottom: 1px solid #E6E6E6;
    font-size: 14px;
}
.menu-item-list li:last-of-type {
    border-bottom: none;
}
.menu-item-second {
    display: inline-block;
    font-weight: 600;
    text-align: left;
    vertical-align: top;
    width: 110px;
}
.menu-item-thrid {
    display: inline-block;
    vertical-align: top;
    width: 530px;
}
.menu-item-thrid a {
    display: inline-block;
    margin: 0 20px 10px 0;
    text-align: left;
    vertical-align: top;
    color: #333;
}
.menu-item-first a:hover,.menu-item-second a:hover {
    color: #ff0000;
}
.menu-item-hot a:hover,.menu-item-thrid a:hover {
    color: #900b09;
}
.focus-sider {
    display: inline;
    float: right;
    padding: 12px 15px 7px 0;
    width: 192px;
}
.focus-sider a {
    background: #f5f5f5;
    border: 1px solid #eee;
    float: left;
    margin: 0 5px 15px 0;
    overflow: hidden;
}
.focus-sider img {
    width: 192px;
    height: 90px;
}

/* 轮播 */
.slide-btn-box {
    position: absolute;
    top: 0;
    left: 216px;
    width: 672px;
    height: 300px;
    background: #ffffff;
}

/* 推广模块  */
.focus-wrapper {
    width: 1130px;
    height: 126px;
    margin: 0 auto;
    box-sizing: border-box;
    -webkit-box-sizing: border-box;
    -moz-box-sizing: border-box;
    border-bottom: 1px solid #e6e6e6;
    border-right: 1px solid #e6e6e6;
}
.focus-item {
    float: left;
    width: 914px;
    padding-left: 216px;
    padding-top: 18px;
}
.focus-item a {
    float: left;
    margin: 0 6px 0 10px;
}
.focus-item img {
    width: 211px;
    height: 90px;
    border-radius: 4px;
}

/* 轮播快速登录模块  */
.quick-content {
    position: absolute;
    top: 0;
    right: 0;
    width: 240px;
    height: 298px;
    background: #FFF;
    border: 1px solid #eee;
}
/* 轮播未登录显示 */
.quick-item {
    padding: 10px 15px;
}
.quick-content .quick-title {
    font-size: 18px;
    color: #000;
    font-weight: normal;
    text-align: center;
    margin-bottom: 10px;
}
.input-wrap {
    margin-bottom: 12px;
}
.pass-label {
    display: block;
    position: absolute;
    left: 20px;
    width: 25px;
    height: 25px;
    overflow: hidden;
    z-index: 20;
    background-image: url("//7nsts.w3cschool.cn/yimages/pass.png");
    background-repeat: no-repeat;    
}
.pass-user {
    background-position: 0px 5px;
}
.pass-pwd {
    background-position: 0px -21px;
}
.input-box {
    padding: 7px 8px 7px 10px;
    width: 78px;
    line-height: 18px;
    border: 1px solid #DDD;
    vertical-align: middle;
    font-size: 13px;
    color: #333;
    border-radius: 3px;
}
.input-box:focus {
    border-color: #aaa;
    box-shadow: 2px 0 5px 0 #fff;
}
.input-user,.input-pwd {
    padding: 7px 8px 7px 40px;
    width: 160px;
}
.input-img {
    padding-left: 10px;
    width: 92px;
    height: 35px;
    vertical-align: middle;
}
.form-checkbox {
    display: inline-block;
    font-size: 13px;
    color: #333;
}
.check-text {
    padding-left: 2px;
    vertical-align: 2px;
}
.find-pwd {
    float: right;
    font-size: 13px;
}
.btn-wrap {
    padding: 10px 0;
}
.form-button {
    width: 100%;
    height: 36px;
    line-height: 36px;
    display: inline-block;
    background-color: #AE4141;
    border: 0px none;  
    font-size: 15px;
    color: #FFF; 
    text-align: center;     
    cursor: pointer;
    border-radius: 3px;
}
.form-button:hover {
    background-color: #900b09;
}
.pop-login-sns {
    height: 76px;
}
.pop-login-sns a {
    float: left;
    width: 95px;
    padding: 0 0 10px 10px;
    color: #666;    
}
/* 轮播已登录显示  */
.personino-item {
    padding: 15px;
}
.personino-item .avatar-img {
    display: inline-block;
    width: 48px;
    height: 48px;
    border-radius: 50%;
    vertical-align: top;
}
.personino-item .user-info {
    display: inline-block;
    margin-left: 10px;
}
.personino-item .user-info .nickname {
    display: inline-block;
}
.personino-item .user-info .vip-sicon {
    margin-left: 5px;
}
.personino-item .user-info span {
    display: block;
    margin-top: 6px;
}
.personino-item .user-box,.personino-item .user-desc {
    margin-bottom: 10px;
    overflow: hidden;
}
.personino-item .user-desc span {
    margin-right: 10px;
    color: #333;
}
.quick-box a {
    display: block;
    background: #F5F5F5;
    border: 1px solid #DDD;
    border-radius: 3px;
    margin: 0 0 10px;
    text-align: center;
}
.icons-user {
    background: url("//7nsts.w3cschool.cn/images/w3c/icon-user.png") no-repeat scroll 0% 0%;
}
.quicklogin a:hover .icons-user {
    background: url("//7nsts.w3cschool.cn/images/w3c/icon-user2.png") no-repeat scroll 0% 0%;
}
.record-box h3 {
    font-size: 14px;
    color: #333;
}
.record-box ul {
    margin: 5px 0 0;
}
.record-box li {
    line-height: 24px;
    word-wrap: normal;
    white-space: nowrap;
    text-overflow: ellipsis;
    overflow: hidden;
}
.vipclub-btn {
    float: right;
    line-height: 30px;
    background-color: #d9534f;
    color: #fff;
    padding: 0 10px;
    border-radius: 6px 0 0 6px;
    margin-right: -16px;
}
.vipclub-btn:hover {
    background-color: #d2322d;
    color: #fff;
}

/* 通用样式 */
.item-content {
    width: 100%;
    background: #ffffff;
    min-width: 1130px;
}
.graybg {
    background: #f9f9f9;
    border-top: 1px solid #ddd;
    border-bottom: 1px solid #ddd;
}
.index-wrapper {
    width: 1130px;
    margin: 0 auto;
    padding: 30px 0;
    overflow: hidden;
}
.first-wrapper {
    padding: 40px 0;
}
#maincontent {
    float: left;
    width: 850px;
}
.sidebar-title {
    border-bottom: 1px solid #ddd;
    padding-bottom: 5px;
    margin: 0 0 12px 0;
    overflow: hidden;
}
.sidebar-title h2 {
    float: left;
    font-size: 18px;
    color: #333;
}
.sidebar-title h2::before,.quick-title::before {
    content: "";
    background: #AE4141;
    display: inline-block;
    width: 7px;
    height: 7px;
    margin-right: 8px;
    margin-bottom: 3px;
    vertical-align: middle;
}
.item-list {
    width: 100%;
    overflow: hidden;
}
.item-title {
    margin-bottom: 20px;
}
.item-title2 {
    text-align: center;
    margin-bottom: 25px;
}
.item-title h2 {
    display: inline-block;
    font-size: 20px;
    color: #333;
}
.item-title2 h2 {
    border-bottom: 2px solid #AE4141;
    padding-bottom: 10px;
}
.module-title {
    width: 200px;
    text-align: center;
}
.more-btn {
    float: right;
    font-size: 14px;
    color: #666;
    line-height: 26px;
}
.more-btn:hover {
    color: #900b09;
}
.item-title .more-btn {
    line-height: 28px;
    margin-right: 12px;
}
.item-line {
    padding: 0px 0 25px;
}
.sidebarimg,.sidebarimg2 {
    margin-bottom: 25px;
}
.sidebarimg img,.sidebarimg2 img {
    display: block;
    width: 280px;
    height: 90px;
    border-radius: 4px;
}
/* 主栏目 */
.feed-list {
    float: left;
    margin-right: 30px;
}
/* 官方推荐、免费课程 */
.recommend-list {
    width: 400px;
}
.feed-item li {
    margin-bottom: 10px;
    overflow: hidden;
}
.feed-img {
    float: left;
    width: 133px;
    height: 89px;
    margin-top: 5px;
}
.feed-img img {
    display: block;
    width: 100%;
    height: 100%;
    border-radius: 4px;
}
.feed-intro {
    margin-left: 0;
}
.have-img .feed-intro {
    margin-left: 153px;
}
.feed-intro h4 {
    width: 100%;
    text-overflow: ellipsis;
    white-space: nowrap;
    overflow: hidden;
}
.feed-intro h4 a {
    font-size: 15px;
    color: #333;
    line-height: 26px;
}
.feed-intro h4 a:hover {
    color: #900b09;
}
.feed-intro p {
    font-size: 14px;
    color: #333;
    text-overflow: ellipsis;
    white-space: nowrap;
    overflow: hidden;
    margin-top: 5px;
}
.feed-meta {
    margin-top: 10px;
}
.feed-meta a,.feed-meta span {
    display: inline-block;
    font-size: 13px;
    color: #666;
}
.feed-meta a {
    color: #900b09;
}
.feed-meta img {
    width: 25px;
    height: 25px;
    border-radius: 50%;
    padding-right: 5px;
    vertical-align: middle;
}
.v-line::before {
    content: "| ";
}
/* 免费课程 */
.freecourse-list {
    width: 390px;
}
.freecourse-list .feed-intro {
    margin-left: 153px;
}
.freecourse-list .feed-meta {
    margin-top: 5px;
}
.feed-price {
    margin-top: 10px;
    font-size: 14px;
    color: #d2322d;
}
.feed-price .curprice-black {
    color: #333;
}
.feed-price .pre-price {
    font-size: 13px;
    color: #666;
}
.feed-vipinfo-box {
    display: inline-block;
    margin-left: 5px;
}
.vipinfo-meta {
    background: #ff191c;
    background: linear-gradient(90deg,#ff7577,#ff191c);
    padding: 2px 4px;
    font-size: 12px;
    border-radius: 4px;
    color: #fff;
}
.vipprice-tag {
    background-color: #FF2D3D;
    background: linear-gradient(90deg, #FF7544 0%, #FF2D3D 100%);
}
.vip-course-tag {
    background-color: #ffa422;
    background: linear-gradient(90deg,#ffa422,#ff7621);
}
.svip-course-tag {
    background: #ff191c;
    background: linear-gradient(90deg,#ff7577,#ff191c);
}

/* 侧边栏 */
#sidebar {
    float: right;
    width: 280px;
}
/* w3cschool头条 */
.news-item li {
    height: 26px;
    line-height: 26px;
    margin-bottom: 8px;
}
.news-item li a {
    display: inline-block;
    font-size: 14px;
    color: #333;
    width: 80%;
    word-wrap: normal;
    white-space: nowrap;
    text-overflow: ellipsis;
    overflow: hidden;
}
.news-item li a:hover {
    color: #900b09;
}
.news-item li a::before {
    content: "";
    background: #AE4141;
    display: inline-block;
    width: 5px;
    height: 5px;
    margin-right: 8px;
    vertical-align: middle;
    border-radius: 50%;
}
.news-item li span {
    float: right;
    font-size: 13px;
    color: #666;
}
.news-item li.istop a {
    font-size: 15px;
    font-weight: 600;
}
.news-item li.istop a::before {
    display: none;
}
/* 排行榜  */
.top-list {
    width: 260px;
}
.top-item li {
    line-height: 40px;
    margin-bottom: 10px;
}
.top-item li img {
    float: left;
    width: 40px;
    height: 40px;
    margin-right: 15px;
    border-radius: 50%;
    box-shadow: 0px 3px 3px rgba(193, 191, 192, 0.5);
}
.top-item li .top-uname {
    width: auto;
    max-width: 50%;
    display: inline-block;
    vertical-align: middle;
    text-overflow: ellipsis;
    white-space: nowrap;
    overflow: hidden;
    color: #333;
}
.top-item li .top-uname:hover {
    color: #900b09;
}
.top-item li .top-numbers {
    float: right;
    color: #666;
}

/* 课程通用样式 */
/* 左侧 */
.course-sidebar {
    position: relative;
    float: left;
    width: 200px;
    margin-bottom: 25px;
}
.course-sidebar-bg {
    display: block;
    width: 200px;
    height: 421px;
    color: #fff;
    text-align: center;
    border-radius: 6px;
    box-shadow: 0 1px 3px rgba(0,0,0,.1);
}
.course-sidebar-bg:hover {
    color: #fff;
    box-shadow: 0 3px 5px rgba(0,0,0,.3);
}
.course-project-bg {
    background: url("//7nsts.w3cschool.cn/images/w3c/course-project-bg.png") no-repeat center center;
}
.course-minicourse-bg {
    background: url("//7nsts.w3cschool.cn/images/w3c/course-minicourse-bg.png") no-repeat center center;
}
.course-codecamp-bg {
    background: url("//7nsts.w3cschool.cn/images/w3c/course-codecamp-bg.png") no-repeat center center;
}
.course-projectcamp-bg {
    background: url("//7nsts.w3cschool.cn/images/w3c/course-projectcamp-bg.png") no-repeat center center;
}
.course-sidebar-title {
    position: absolute;
    top: 30px;
    left: 0;
    right: 0;
    text-align: center;
    font-size: 26px;
    font-weight: 500;
}
.course-sidebar-intro {
    position: absolute;
    left: 0;
    right: 0;
    bottom: 100px;
    font-size: 15px;
    font-weight: 600;
    line-height: 30px;
    text-align: center;
    padding: 0 5px;
}
.icon-course-down {
    display: block;
    position: absolute;
    left: 0;
    right: 0;
    bottom: -50px;
    width: 48px;
    height: 48px;
    background: url("//7nsts.w3cschool.cn/images/w3c/icon-course-down.png") no-repeat center center; 
    margin: 0 auto;
}
/* 右侧 */
.course-main {
    float: left;
    width: 930px;
}
.course-item li {
    float: left;
    width: 22.3%;
    margin: 0 0 25px 25px;
}
.course-item2 li {
    width: 47.1%;
}
.course-box {
    display: block;
    background-color: #fff;
    border: 1px solid #ddd;
    border-radius: 6px;
    box-shadow: 0 1px 3px rgba(0,0,0,.1);
}
.course-box:hover {
    box-shadow: 0 3px 5px rgba(0,0,0,.3);
}
.course-box a {
    color: #333;
}
.course-img {
    position: relative;
    height: 120px;
    line-height: 120px;
    text-align: center; 
    background-color: #ddd;
    border-top-left-radius: 6px;
    border-top-right-radius: 6px; 
}
.course-item2 .course-img {
    height: 196px;
    line-height: 196px;
    border-radius: 6px;
}
.course-img img {
    display: block;
    width: 100%;
    height: 100%;
    border-top-left-radius: 6px;
    border-top-right-radius: 6px;
}
.course-item2 .course-img img {
    border-radius: 6px;
}
.course-desc {
    text-align: center;
}
.course-desc h3 {
    font-size: 15px;
    font-weight: 500;
    padding: 10px 10px 0;
}
.course-desc2 {
    position: absolute;
    top: 0;
    width: 100%;
}
.course-desc2 h3 {
    font-size: 26px;
    color: #fff;
    font-weight: 500;
    height: 64px;
    line-height: 32px;
    margin: 40px 25px 20px;
    overflow: hidden;
}
.icon-play-procamp {
    display: block;
    width: 48px;
    height: 48px;
    background: url("//7nsts.w3cschool.cn/images/w3c/icon-play-procamp.png") no-repeat center center; 
    margin: 0 auto;
    opacity: 0.9;
}
.course-meta {
    height: 21px;
    font-size: 13px;
    color: #666;
    padding: 10px 10px 15px;
}
.course-meta .vip-tag,.course-meta .cur-price {
    font-size: 14px;
    color: #d2322d;
}
.course-tag {
    position: absolute;
    right: 0;
    top: 0;
    padding: 3px 5px;
    color: #fff;
    line-height: 20px;
    border-top-left-radius: 8px;
    border-bottom-left-radius: 4px;
}
.vip-course-tag {
    background-color: #ffa01a;
}
.svip-course-tag {
    background-color: #ff5900;
}
.new-course-tag {
    position: absolute;
    background-color: #f03d31;
    border: 2px solid #fff;
    border-radius: 12px;
    top: -8px;
    left: -8px;
    z-index: 10;
    font-family: dincondm;
    font-size: 12px;
    color: #fff;
    line-height: 20px;
    padding: 0 8px;
}
.course-label {
    position: absolute;
    bottom: 8px;
    left: 8px;
    font-size: 12px;
    color: #fff;
    line-height: 16px;
}
.course-label .mark {
    display: inline-block;
    background-color: rgba(0,0,0,.4);
    border-radius: 12px;
    padding: 4px 8px;
    font-weight: normal;
}

/* 教程手册流式布局显示 */
.index-wrapper .project-item {
    float: left;
    width: 24.1%;
    padding: 0 5px;
}
.project-menu #menu {
    margin-bottom: 10px;
    overflow: hidden;
}
.project-menu ul#menu li {
    float: left;
    height: 35px;
    line-height: 35px;
    margin: 0 10px;
}
.project-menu ul#menu li a {
    display: inline-block;
    font-size: 15px;
    color: #333;
}
.project-menu ul#menu li a:hover {
    color: #900b09;
}
.index-wrapper .project-box {
    position: relative;
    background: #fff;
    border-right: 1px solid #ececec;
    border-bottom: 1px solid #dfdfdf;
    border-left: 1px solid #ececec;
    border-radius: 8px;
    box-shadow: 0 1px 5px 0 rgba(0,0,0,0.04);
    margin: 20px auto 0;
    height: 1550px;
    min-height: 1000px;
    text-align: center;
    z-index: 1;
}
.index-wrapper .project-box h4 {
    position: relative;
    background: #cdcdcd;
    text-align: center;
    top: -7px;
    border-top-left-radius: 8px;
    border-top-right-radius: 8px;
    font-size: 14px;
    color: #000;
    line-height: 30px;
    margin-top: 5px;
}
.index-wrapper .project-box ul.menu {
    padding: 0 15px;
    margin: 5px 0 15px;
    list-style: none;
}
.index-wrapper .project-box ul.menu li {
    margin: 0;
    line-height: 24px;
}
.index-wrapper .project-box ul.menu li a {
    text-align: left;
    display: block;
    padding: 5px 0;
    border-bottom: 1px dotted #bbb;
    color: #333;
    word-wrap: normal;
    white-space: nowrap;
    text-overflow: ellipsis;
    overflow: hidden;
}
.index-wrapper .project-box ul.menu li a:hover {
    background-color: #f5f5f5;
    border-left: 1px dotted #bbb;
    border-right: 1px dotted #bbb;
    color: #000;
}
/* 手册图标 */
.icon-img {
    background-image: url("//7nsts.w3cschool.cn/images/w3c/platform-sprite.png");
    background-repeat: no-repeat;
}
.icon-question {
    background: url("//7nsts.w3cschool.cn/yimages/question-icon.png") no-repeat scroll 0% 0%;
}
.icon-hb {
    background: url("//7nsts.w3cschool.cn/images/w3c/icon-book.png") no-repeat scroll 0% 0%;
}
.icon-artile {
    background: url("//7nsts.w3cschool.cn/images/w3c/icon-article.png") no-repeat scroll 0% 0%;
}
.icon-news {
    width: 18px;
    height: 18px;
    background: url("//7nsts.w3cschool.cn/images/w3c/icon-news.png") no-repeat scroll 0% 0%;
}
.platform-default {
    background-position: 0 0;
}
.platform-Google {
    background-position: -41px 0;
}
.platform-Mac,.platform-ios {
    background-position: -82px 0;
}
.platform-Other {
    background-position: -123px 0;
}
.platform-SproutCore {
    background-position: -164px 0;
}
.platform-StackOverflow {
    background-position: -205px 0;
}
.platform-actionscript,.platform-7-17 {
    background-position: -246px 0;
}
.platform-akka {
    background-position: -287px 0;
}
.platform-android,.platform-android_sdk {
    background-position: -328px 0;
}
.platform-angulardart {
    background-position: -369px 0;
}
.platform-angularjs,.platform-angular2 {
    background-position: -410px 0;
}
.platform-angularts {
    background-position: -451px 0;
}
.platform-ansible {
    background-position: -492px 0;
}
.platform-apache,.platform-16-17 {
    background-position: -533px 0;
}
.platform-apple {
    background-position: -574px 0;
}
.platform-applescript {
    background-position: -615px 0;
}
.platform-arduino {
    background-position: -656px 0;
}
.platform-awesome {
    background-position: -697px 0;
}
.platform-awsjs {
    background-position: -738px 0;
}
.platform-backbone {
    background-position: -779px 0;
}
.platform-bash {
    background-position: -820px 0;
}
.platform-boost {
    background-position: -861px 0;
}
.platform-bootstrap,.platform-codecamp-2 {
    background-position: -902px 0;
}
.platform-bourbon {
    background-position: -943px 0;
}
.platform-c,.platform-23-17 {
    background-position: -984px 0;
}
.platform-cakephp {
    background-position: -1025px 0;
}
.platform-cappuccino {
    background-position: -1066px 0;
}
.platform-cf {
    background-position: -1107px 0;
}
.platform-chai {
    background-position: -1148px 0;
}
.platform-cheatsheet {
    background-position: -1189px 0;
}
.platform-chef {
    background-position: -1230px 0;
}
.platform-clojure {
    background-position: -1271px 0;
}
.platform-cmake {
    background-position: -1312px 0;
}
.platform-cocoadocs_platform {
    background-position: -1353px 0;
}
.platform-cocoapods {
    background-position: -1394px 0;
}
.platform-cocos2d {
    background-position: -1435px 0;
}
.platform-cocos2dx {
    background-position: -1476px 0;
}
.platform-codeigniter {
    background-position: -1517px 0;
}
.platform-coffee {
    background-position: -1558px 0;
}
.platform-compass {
    background-position: -1599px 0;
}
.platform-cordova {
    background-position: -1640px 0;
}
.platform-corona {
    background-position: -1681px 0;
}
.platform-couchdb {
    background-position: -1722px 0;
}
.platform-cpp,.platform-18-17 {
    background-position: -1763px 0;
}
.platform-craft {
    background-position: -1804px 0;
}
.platform-css3 {
    background-position: -1845px 0;
}
.platform-cvc {
    background-position: -1886px 0;
}
.platform-cvcpp {
    background-position: -1927px 0;
}
.platform-cvj {
    background-position: -1968px 0;
}
.platform-cvp {
    background-position: -2009px 0;
}
.platform-d3 {
    background-position: -2050px 0;
}
.platform-dartdocs {
    background-position: -2091px 0;
}
.platform-dartlang {
    background-position: -2132px 0;
}
.platform-django,.platform-25-17 {
    background-position: -2173px 0;
}
.platform-docker,.platform-reqsgr,.platform-24-17 {
    background-position: -2214px 0;
}
.platform-doctrine {
    background-position: -2255px 0;
}
.platform-dojo {
    background-position: -2296px 0;
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.platform-vb_net{background:url("//7nsts.w3cschool.cn/images/w3c/platform-sprite2.png") no-repeat -128px 0px;}
.platform-web-17{background:url("//7nsts.w3cschool.cn/images/w3c/platform-sprite2.png") no-repeat -144px 0px;}
.platform-impala{background:url("//7nsts.w3cschool.cn/images/w3c/platform-sprite2.png") no-repeat -160px 0px;}
.platform-apex{background:url("//7nsts.w3cschool.cn/images/w3c/platform-sprite2.png") no-repeat -176px 0px;}
.platform-cassandra{background:url("//7nsts.w3cschool.cn/images/w3c/platform-sprite2.png") no-repeat -192px 0px;}
.platform-apache_storm{background:url("//7nsts.w3cschool.cn/images/w3c/platform-sprite2.png") no-repeat -208px 0px;}
.platform-apache_kafka{background:url("//7nsts.w3cschool.cn/images/w3c/platform-sprite2.png") no-repeat -224px 0px;}
.platform-apache_pig{background:url("//7nsts.w3cschool.cn/images/w3c/platform-sprite2.png") no-repeat -240px 0px;}
.platform-flex{background:url("//7nsts.w3cschool.cn/images/w3c/platform-sprite2.png") no-repeat -256px 0px;}
.platform-hadoop,.platform-26-17{background:url("//7nsts.w3cschool.cn/images/w3c/platform-sprite2.png") no-repeat -272px 0px;}
.platform-emberjs_guide{background:url("//7nsts.w3cschool.cn/images/w3c/platform-sprite2.png") no-repeat -288px 0px;}
.platform-cssreference{background:url("//7nsts.w3cschool.cn/images/w3c/platform-sprite2.png") no-repeat -304px 0px;}
.platform-ecmascript{background:url("//7nsts.w3cschool.cn/images/w3c/platform-sprite2.png") no-repeat -320px 0px;}

/* 开源机构  */
.org-box {
    margin: 10px 0 20px;
    overflow: hidden;
}
.org-box a {
    display: inline-block;
    width: 14.7%;
    height: 120px;
    border: 1px solid #ddd;
    color: #333;
    text-align: center;
    margin: 10px 8px;
    overflow: hidden;
    border-radius: 4px;
}
.org-box a:hover {
    border: 1px solid #ccc;
}
.org-box .org-img {
    display: block;
    width: 100px;
    height: 100px;
    margin: 10px auto;
}
/* --- 友情链接、最近更新 --- */
.archives-list {
    margin-top: 20px;
}
.archives-title {
    height: 40px;
    line-height: 40px;
    border-bottom: 2px solid #DDD;
}
.archives-title h2 {
    float: left;
    font-size: 16px;
    color: #333;
    border-bottom: 2px solid #AE4141;
}
.archives-title .more-link {
    float: right;
    font-size: 14px;
    color: #666;
}
.links-box,.archives-box {
    margin-top: 10px;
    overflow: hidden;
}
.links-box a,.archives-box a {
    display: inline-block;
    font-size: 14px;
    color: #333;
    margin: 3px 15px 10px 5px;
}
.links-list a:hover,.archives-list a:hover {
    color: #900b09;
}

/* 底部浮动条 */
.widget-main {
    width: 100%;
    height: 80px;
    line-height: 80px;
    position: fixed;
    left: 0;
    bottom: 0;
    z-index: 1000;
    background: rgba(0,0,0,.7);
    filter:progid:DXImageTransform.Microsoft.gradient(startColorstr=#BF000000,endColorstr=#BF000000); /*IE6-8*/ 
}
.widget-main-banner {
    height: 136px;
    line-height: 136px;
    background: transparent;
}
.widget-main-banner .widget-main-img {
    display: block;
    width: 100%;
    min-width: 1130px;
    height: 136px;
    background: url("//7nsts.w3cschool.cn/images/w3c/index-widget-banner.png") no-repeat center;
}
.widget-box {
    position: relative;
    width: 1130px;
    margin: 0 auto;
    overflow: hidden;
    text-align: center;  
    color: #eee;
}
.widget-box * {
    float: left;
}
.widget-box a {
    color: #eee;
}
.widget-box a:hover {
    color: #fff;
}
.widget-box .slogn {
    font-size: 18px;
}
.widget-box .quicklogin {
    position: relative;
    text-align: center;
    font-size: 14px;
}
.widget-box .quick-box a {
    display: inline-block;
    border: 1px solid transparent;
    margin: 24px 10px 0 10px;
    color: #fff;
}
.widget-box .reg-btn {
    background: #f0ad4e; 
}
.widget-box .reg-btn:hover {
    background: #ed9c28; 
}
.widget-box .qq-btn {
    background: #56abe4;
}
.widget-box .qq-btn:hover {
    background: #1d9ad6;
}
.widget-box .weixina {
    background: #3bae56;
}
.widget-box .weixina:hover {
    background: #47a447;
}
.widget-box .weibo-btn {
    background: #eb4f38;
}
.widget-box .weibo-btn:hover {
    background: #ff5222;
}
.widget-box .icons-qq-widget {
    background-position: 0px -60px;
}
.widget-box .icons-weixin-widget {
    background-position: -30px -60px;
}
.widget-box .icons-weibo-widget {
    background-position: -60px -60px;
}
.widget-box .pop-sns {
    margin-top: 3px;
}
.widget-box-close {
    position: absolute;
    top: 10px;
    right: 60px;
    width: 25px;
    height: 25px;
    line-height: 25px;
    display: inline-block;
    font-size: 15px;
    color: #eee;
    text-align: center;
    cursor: pointer;
}
.widget-main .widget-box-close {
    top: 60px;
}
.widget-box-close:hover {
    text-decoration: none;
    color: #fff;
}
.sig-group a {
    font-size: 14px;
}

/* vip浮动框样式  */
.vip-area {
    width: 100%; 
    height: 100%; 
    position: fixed; 
    z-index: 99999;
    left: 0; 
    top: 0;
}
.vip-area .vip-bg {
    width: 100%; 
    height: 100%; 
    position: fixed; 
    z-index: 99999;
    left: 0; 
    top: 0; 
    background: #000; 
    opacity: 0.75 ;
    filter: alpha(opacity=75);
}
.vip-area .vip-main {
    width: 550px;
    height: 460px;
    position: fixed;
    z-index: 999999;
    left: 50%;
    top: 50%;
    margin: -250px 0 0 -310px;
}
.vip-main .close-btn {
    position: absolute; 
    right: 6px; 
    top: 6px; 
    display: inline-block; 
    width: 30px; 
    height: 30px; 
    background: url("//7nsts.w3cschool.cn/images/w3c/close-btn.png") no-repeat center center; 
    cursor: pointer;
}
.vip-main .vip-dialog {
    width: 550px;
    height: 460px;
    background: transparent;
    border-radius: 4px;
}

/* ----------------------------------- 页面自适应 ----------------------------------- */
@media (min-width:1200px) {
    .nav-menu-banner {
        width: 914px;
    }
    #header_index,.slide-btn,.focus-wrapper,.index-wrapper,#footer,.footer-bottom {
        width: 1130px;
    }
    #header_index .searchbox {
        width: 462px;
    }
    #header_index .searchbox input.box {
        width: 386px;
    }
    .menu-item-list {
        width: 650px;
    }
    .menu-item-thrid {
        width: 530px;
    }
    .slide-btn-box {
        width: 672px;
    }
    .focus-item {
        width: 914px;
    }
    .focus-item img {
        width: 211px;
    }
    #maincontent {
        width: 850px;
    }
    .course-main {
        width: 930px;
    }
    .recommend-list {
        width: 400px;
    }
}
@media (min-width:1300px) {
    .nav-menu-banner {
        width: 1014px;
    }
    #header_index,.slide-btn,.focus-wrapper,.index-wrapper,#footer,.footer-bottom {
        width: 1230px;
    }
    #header_index .searchbox {
        width: 530px;
    }
    #header_index .searchbox input.box {
        width: 454px;
    }
    .menu-item-list {
        width: 750px;
    }
    .menu-item-thrid {
        width: 630px;
    }
    .slide-btn-box {
        width: 772px;
    }
    .focus-item {
        width: 1014px;
    }
    .focus-item img {
        width: 236px;
    }
    #maincontent {
        width: 950px;
    }
    .course-main {
        width: 1030px;
    }
    .recommend-list {
        width: 500px;
    }
}

/* ----------------------------------- 隐藏站长统计 ----------------------------------- */
#cnzz_stat_icon_1258207405 {
    display: none;
}

/** 反馈样式  开始  **/
.report-Box,.feedback-Box,.register-Box{
    width: 100%;
    height: 100%; 
    background-color: #000; 
    position:fixed; 
    top:0px; 
    left:0px;
    background-color: rgba(000,000,000,0.8);
    z-index: 1200;
}
.report-Box-content,.feedback-Box-content,.register-Box-content{
    z-index:1200;
    top:10%;
    width: 500px;
    margin:0px auto;
    background-color: #fff;
    position: relative;
    overflow: hidden;
    -moz-border-radius: 4px;
    -webkit-border-radius: 4px;
    border-radius:4px;
}
.report-Box-top,.feedback-Box-top,.register-Box-top{
    padding: 10px 20px;
    background-color: #F3F3F3;
    border-bottom: 1px solid #E5E5E5;
}
.report-Box-title,.feedback-Box-title,.register-Box-title{
    font-size: 16px;
    font-weight: bold;
}
.report-Box-close,.feedback-Box-close,.register-Box-close{
    cursor:pointer;
    float: right; 
    width:20px;
    height:20px;
    font-weight:700;
    text-align: center;
    color: #9e9e9e;
    text-shadow: 0px 1px 0px #FFF;
}
#reportSubmit,#feedbackSubmit,#registerSubmit{
    cursor: pointer;
    float: right; 
    margin: 20px;
    text-align: center;
    width: 90px;
    height: 35px;
    line-height: 35px;
    background-color: #ae4141;
    border: 1px solid #ae4141;
    color: #FFF;
    border-radius: 3px;
}
.report-Box-content ul,.feedback-Box-content ul,.register-Box-content ul {
    margin: 10px 0;
    padding: 0 30px;
}
.radio-box,.feedback-box,.register-box{
    cursor:pointer;
    display: block;
}
.feedback-box #feedbackRadio,.feedback-box p {
    margin: 12px 0;
    font-size: 15px;
    font-weight: bold;
    color: #333;
}
.radio-text,.feedback-text,.register-text{
    width: 340px;
    height: 21px;
    padding: 6px 8px;
    border: 1px solid #CCC;
    box-shadow: 0px 1px 1px rgba(0, 0, 0, 0.075) inset;
    -moz-border-radius: 4px;      /* Gecko browsers */
    -webkit-border-radius: 4px;   /* Webkit browsers */
    border-radius:4px;            /* W3C syntax */
}
.radio-text,.feedback-text,.register-text{
    width: 430px;
    height: 63px;
}
.feedback-text {
    width: 600px;
    height:200px;
    overflow:auto;
    box-sizing: border-box;
    -webkit-box-sizing: border-box;
    -moz-box-sizing: border-box;
    resize: none;
    line-height: 22px;
}
.register-Box-info{
    background: url("//7nsts.w3cschool.cn/yimages/register_bg.png") no-repeat scroll 0px 0px;
    height: auto;
    overflow: hidden;
    width: 100%;
}
.usertype-ico-1{
    background: url("//7nsts.w3cschool.cn/yimages/vip_ico.png") no-repeat scroll 0px 0px;
    padding: 9px 15px;
}
.register-Box-left,.register-Box-right{
    float: left;
    margin: 10px;
}
.register-Box-right{
    width: 325px;
}
.register-Box-left img{
    width: 100px;
    height: 100px;
}
.register-userinfo{
    clear: both;
    margin: 0 5px 10px;
}
.register-userinfo-title{
    font-size: 16px;
}
.register-userinfo-info{
    font-size: 20px;
    color: #bd2d30;
    margin-left: 5px;
}
.register-Box-info #reportSubmit{
    margin: 0 0 0 220px;
}
.register-userinfo span{
    width: 100px;
    word-break:break-all;
    overflow: hidden;
}
/** 反馈样式  结束  **/

/* toast */
.toast-title{font-weight:bold}
.toast-message{-ms-word-wrap:break-word;word-wrap:break-word}
.toast-message a,.toast-message label{color:#fff}
.toast-message a:hover{color:#ccc;text-decoration:none}
.toast-close-button{position:relative;right:-.3em;top:-.3em;float:right;font-size:20px;font-weight:bold;color:#fff;-webkit-text-shadow:0 1px 0 #fff;text-shadow:0 1px 0 #fff;opacity:.8;-ms-filter:progid:DXImageTransform.Microsoft.Alpha(Opacity=80);filter:alpha(opacity=80)}
.toast-close-button:hover,.toast-close-button:focus{color:#000;text-decoration:none;cursor:pointer;opacity:.4;-ms-filter:progid:DXImageTransform.Microsoft.Alpha(Opacity=40);filter:alpha(opacity=40)}
button.toast-close-button{padding:0;cursor:pointer;background:transparent;border:0;-webkit-appearance:none}
.toast-top-full-width{top:0;right:0;width:100%}
.toast-bottom-full-width{bottom:0;right:0;width:100%}
.toast-top-left{top:12px;left:12px}
.toast-top-right{top:12px;right:12px}
.toast-bottom-right{right:12px;bottom:12px}
.toast-bottom-left{bottom:12px;left:12px}
.toast-top-center {top: 12px;margin: 0 auto;left: 50%;margin-left: -150px;}
.toast-bottom-center {bottom: 12px;margin: 0 auto;left: 50%;margin-left: -150px;}
#toast-container{position:fixed;z-index:999999}
#toast-container *{-moz-box-sizing:border-box;-webkit-box-sizing:border-box;box-sizing:border-box}
#toast-container>div{margin:0 0 6px;padding:15px 15px 15px 50px;width:300px;-moz-border-radius:3px 3px 3px 3px;-webkit-border-radius:3px 3px 3px 3px;border-radius:3px 3px 3px 3px;background-position:15px center;background-repeat:no-repeat;-moz-box-shadow:0 0 12px #999;-webkit-box-shadow:0 0 12px #999;box-shadow:0 0 12px #999;color:#fff;opacity:.8;-ms-filter:progid:DXImageTransform.Microsoft.Alpha(Opacity=80);filter:alpha(opacity=80)}
#toast-container>:hover{-moz-box-shadow:0 0 12px #000;-webkit-box-shadow:0 0 12px #000;box-shadow:0 0 12px #000;opacity:1;-ms-filter:progid:DXImageTransform.Microsoft.Alpha(Opacity=100);filter:alpha(opacity=100);cursor:pointer}
#toast-container>.toast-info{background-image:url("data:image/png;base64,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")!important}
#toast-container>.toast-error{background-image:url("data:image/png;base64,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")!important}
#toast-container>.toast-success{background-image:url("data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAABgAAAAYCAYAAADgdz34AAAAAXNSR0IArs4c6QAAAARnQU1BAACxjwv8YQUAAAAJcEhZcwAADsMAAA7DAcdvqGQAAADsSURBVEhLY2AYBfQMgf///3P8+/evAIgvA/FsIF+BavYDDWMBGroaSMMBiE8VC7AZDrIFaMFnii3AZTjUgsUUWUDA8OdAH6iQbQEhw4HyGsPEcKBXBIC4ARhex4G4BsjmweU1soIFaGg/WtoFZRIZdEvIMhxkCCjXIVsATV6gFGACs4Rsw0EGgIIH3QJYJgHSARQZDrWAB+jawzgs+Q2UO49D7jnRSRGoEFRILcdmEMWGI0cm0JJ2QpYA1RDvcmzJEWhABhD/pqrL0S0CWuABKgnRki9lLseS7g2AlqwHWQSKH4oKLrILpRGhEQCw2LiRUIa4lwAAAABJRU5ErkJggg==")!important}
#toast-container>.toast-warning{background-image:url("data:image/png;base64,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")!important}
#toast-container.toast-top-full-width>div,#toast-container.toast-bottom-full-width>div{width:96%;margin:auto}
.toast{background-color:#030303}
.toast-success{background-color:#51a351}
.toast-error{background-color:#bd362f}
.toast-info{background-color:#2f96b4}
.toast-warning{background-color:#f89406}
@media all and (max-width:240px){
  #toast-container>div{padding:8px 8px 8px 50px;width:11em}
  #toast-container .toast-close-button{right:-.2em;top:-.2em}
}
@media all and (min-width:241px)and (max-width:480px){
  #toast-container>div{padding:8px 8px 8px 50px;width:18em}
  #toast-container .toast-close-button{right:-.2em;top:-.2em}
}
@media all and (min-width:481px)and (max-width:768px){
  #toast-container>div{padding:15px 15px 15px 50px;width:25em}
}
/* end */

/*返回顶部 start */
.bottom-tools {
    position: fixed;
    z-index: 1070;
    right: 0px;
    box-shadow: 1px 1px 17px #ccc;
    background: #efefef none repeat scroll 0 0;
}
.bottom-tools>* {
    font: 0/0 a;
    display: block;
    margin-top: 5px;
    color: transparent;
    border: 0;
    background-color: transparent;
    text-shadow: none;
}
.qr-img {
    background-image: url("//7nsts.w3cschool.cn/yimages/qr-img.png");
    display: none;
    height: 176px;
    left: -183px;
    max-width: none;
    padding-top: 57px;
    position: absolute;
    text-align: center;
    top: -150px;
    width: 173px;
}
.qr-img img {
    height: 100px;
    width: 100px;
}
#scrollUp {
    width: 45px;
    height: 45px;
    background-image: url("//7nsts.w3cschool.cn/yimages/backgrounds.32.png");
    background-position: -54px -53px;
    display: none;
}
#scrollUp:hover {
    background-image: url("//7nsts.w3cschool.cn/yimages/backgrounds.32.png");
    background-position: -100px -53px
}
.webjy {
    width: 45px;
    height: 45px;
    background-image: url("//7nsts.w3cschool.cn/yimages/jyfk.jpg");
}
.webjy:hover {
    background-image: url("//7nsts.w3cschool.cn/yimages/jyfk_hv.jpg");
}
#webkf {
    width: 45px;
    height: 45px;
    background-image: url("//7nsts.w3cschool.cn/yimages/qqkf.jpg");
}
#webkf:hover {
    background-image: url("//7nsts.w3cschool.cn/yimages/qqkf_hv.jpg");
}
.qr-tool {
    width: 45px;
    height: 45px;
    background-image: url("//7nsts.w3cschool.cn/yimages/backgrounds.32.png");
    background-position: -148px 0;
    cursor: pointer;
}
.qr-tool:hover {
    width: 45px;
    height: 45px;
    background-image: url("//7nsts.w3cschool.cn/yimages/backgrounds.32.png");
    background-position: -192px -46px;
}

/*** dialog 遮罩层样式 begin ****/
.dialogBackground {
    background: #555 none repeat scroll 0 0;
    display: none;
    height: 100%;
    left: 0;
    opacity: 0.4;
    position: absolute;
    top: 0;
    width: 100%;
    z-index: 1000;
    background: #000 none repeat scroll 0 0;
    opacity: 0.5;
}
/*** dialog 遮罩层样式 end ****/
/*****微信关注公众号登陆*****/
.wechatqr{
    text-align:center;
    padding: 25px 15px;
}
/*****微信关注公众号登陆end*****/

/* ------- 侧边工具栏 ------- */
#toolbar { position: fixed; bottom: 100px; right: 0; z-index: 999; font-size: 12px; background-color: #fff; box-shadow: 0 0 10px 0 rgba(102, 102, 102, .25); }

#toolbar .tool { position: relative; padding: 10px 6px; text-align: center; line-height: 1; color: #666; cursor: pointer; }
#toolbar .tool a {color: inherit;}
#toolbar .tool.backtop { display: none; }
#toolbar .tool .tool-icon { width: 32px; height: 32px; margin: 0 auto 4px; background: url("//7nsts.w3cschool.cn/images/sprite/toolbar.png") no-repeat 0 0/600% 200%; }
#toolbar .tool.app .tool-icon { background-position: 0 0; }
#toolbar .tool.wechat .tool-icon { background-position: -32px 0; }
#toolbar .tool.feedback .tool-icon { background-position: -64px 0; }
#toolbar .tool.service .tool-icon { background-position: -96px 0; }
#toolbar .tool.backtop .tool-icon { background-position: -128px 0; }

#toolbar .tool:hover { color: #fff; background-color: #fe6a00; }
#toolbar .tool:hover .tool-popover { display: block; }
#toolbar .tool.app:hover .tool-icon { background-position: 0 -32px; }
#toolbar .tool.wechat:hover .tool-icon { background-position: -32px -32px; }
#toolbar .tool.feedback:hover .tool-icon { background-position: -64px -32px; }
#toolbar .tool.service:hover .tool-icon { background-position: -96px -32px; }
#toolbar .tool.backtop:hover .tool-icon { background-position: -128px -32px; }

#toolbar .tool-popover { display: none; position: absolute; top: 0; right: 100%; z-index: 999; background-color: transparent; }
#toolbar .tool-popover-inner { margin-right: 12px; font-size: 14px; color: #333; width: 140px; padding-bottom: 8px; background-color: #fff; box-shadow: 0 0 10px 0 rgba(102, 102, 102, .25); }
#toolbar .tool-popover-inner p { line-height: 1.5; }