【children_parent】
<!DOCTYPE html>
<html>
<head>
<style type='text/css'>
.imgg {
position: relative;
}
.imgg>div {
position: absolute;
top: 2.5vw;
}
.imgg>img {
max-width: 100%;
width: auto\9;
}
</style>
</head>
<body>
<div class="imgg">
<img src="http://www.w3cschool.cn/style/download.png" />
<div id="text1">this is a test.
this is a test. this is a test. this is a test. this is a test.
this is a test. this is a test.
this is a test.</div>
</div>
</body>
</html>
