【display】
<!DOCTYPE html>
<html>
<head>
<script type='text/javascript'
src='http://code.jquery.com/jquery-1.9.1.js'></script>
<style type='text/css'>
#myID {
display: block;
background: #006;
color: #fff;
width: 200px;
text-align: center;
}
</style>
</head>
<body>
<a href="javascript:void(0);" onclick="$('#myID').toggle();">Toggle</a>
<a href="" id="myID">w3cschool.cn</a>
</body>
</html>
