<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>革除浮动之overflow</title>
<style>
.box { width: 800px; border: 1px solid blue; margin: 0 auto; background-color: gray; /* 革除浮动 */ overflow: hidden;}.damao { width: 300px; height: 200px; background-color: purple; float: left;}.ermao { width: 200px; height: 200px; background-color: pink; float: left;}.footer { height: 200px; background-color: black;}</style>
</head>
<body>
<div class="box">
<div class="damao">大毛</div><div class="ermao">二毛</div><div class="ermao">二毛</div><div class="ermao">二毛</div><div class="ermao">二毛</div><div class="ermao">二毛</div></div>
<div class="footer"></div>
</body>
</html>