效果：設置浮動後父元素高度塌陷 插入下麵兩段代碼：. 效果： ...
<!DOCTYPE html>
<html lang="en" dir="ltr">
<head>
<meta charset="utf-8">
<title>高度塌陷解決</title>
<style media="screen">
.box1{
border: 10px #bfc993 solid;
}
.box2{
width: 100px;
height: 100px;
background-color: rgb(224, 223, 182);
float: left;
}
.clearfix{
zoom:1;
}
</style>
</head>
<body>
<div class="box1">
<div class="box2">
</div>
</div>
</body>
</html>
效果：設置浮動後父元素高度塌陷
插入下麵兩段代碼：.
clearfix:after{
content: "";
display: block;
clear: both;
}
<div class="box1 clearfix">
效果：
