为什么设置子元素浮动后没有出现父元素塌陷?
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<meta http-equiv="X-UA-Compatible" content="ie=edge">
<title>float演示案例</title>
<style>
*{
margin: 0;
padding: 0}
.container{
width: 790px;
border: 1px dashed gray;
padding:10px;
/*overflow:hidden;
zoom:1;没有出现父元素塌陷*/
}
div{
width: 240px;
margin: 10px;
border: 1px solid gray;
float: left;
}
p{
margin:5px}
</style>
</head>
<body>
<div class="container">
<div>
<img src="http://img1.sycdn.imooc.com/climg//590fe9770001e63102400135.jpg" alt="html">
<p>欢迎来到慕课网学习新知识!</p>
</div>
<div>
<img src=http://img1.sycdn.imooc.com/climg//590fe97d00011bda02400135.jpg alt="html">
<p>欢迎来到慕课网学习新知识!</p>
</div>
<div>
<img src=http://img1.sycdn.imooc.com/climg//590fe982000150ba02400135.jpg alt="html">
<p>欢迎来到慕课网学习新知识!</p>
</div>
<div>
<img src="http://img1.sycdn.imooc.com/climg//590fe9770001e63102400135.jpg" alt="html">
<p>欢迎来到慕课网学习新知识!</p>
</div>
<div>
<img src=http://img1.sycdn.imooc.com/climg//590fe97d00011bda02400135.jpg alt="html">
<p>欢迎来到慕课网学习新知识!</p>
</div>
<div>
<img src=http://img1.sycdn.imooc.com/climg//590fe982000150ba02400135.jpg alt="html">
<p>欢迎来到慕课网学习新知识!</p>
</div>
</div>
</body>
</html>0
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