20 层模型中绝对定位和相对定位组合使用 

<!doctype html>
<html>
<head>
<meta charset="utf-8">
<title>无标题文档</title>
<style type="text/css">
div{border:2px solid red;}
#box1{
    width:200px;
    height:200px;
    position:relative;
    }
#box2{
    position:absolute;
    top:20px;
    left:30px;

    }
#box3{
    width:200px;
    height:200px;
    position:relative;
    }
#box4{
    width:99%;
    position:absolute;
    }
</style>
</head>

<body>  
<div>
    <div id="box2">相对参照元素进行定位</div>
</div>
<h1>下边是任务部分</h1>
<div id="box3">
    <img src=><img src="../Desktop/11.jpg" width="101" height="101" alt=""/>
    <div id="box4">当我还是三年级的学生时是一个害羞的小女生</div>
</div>
</body>
</html>

 

posted @ 2017-07-09 21:08  Riona-C  阅读(191)  评论(0)    收藏  举报