<html>
<head>
<meta http-equiv="Content-type" content="text/html,charset=utf-8"/>
<style type="text/css">
body{
border: red 5px solid;
}
div{
border:green 3px solid;
border-width:2px;
border-top-width:5px;
border-top-color:blue;
border-top-style:solid;
border-left:blue 10px solid;
border-right:orange 20px solid;
border-bottom:red 30px solid;
padding:80px 77px 88px 44px;
margin:60px 111px 280px 99px;
}
</style>
</head>
<body>
<div>
演示盒子模型
</div>
</body>
</html>
css 盒子模型
最新推荐文章于 2025-07-03 11:04:06 发布