css拾遗(2)盒模型box-sizing:border-box
2022-03-29 本文已影响0人
姜治宇
<!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>Document</title>
<style>
*,
::before,
::after {
box-sizing: border-box;
}
body{
background:green;
}
.box{
float:left;
height:500px;
padding:20px;
border:10px solid #ccc;
}
.w-70{
width:calc(70% - 20px);
background:red;
margin-right:20px;
}
.w-30{
width:30%;
background:yellow;
}
</style>
</head>
<body>
<div class="box w-70">
11111111111
</div>
<div class="box w-30">
222222222222
</div>
</body>
</html>
666.png
