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<!DOCTYPE html>
<html lang="zh-cn">
<head>
<meta charset="UTF-8">
<title>写一个盒模型的简单案例，体会padding/border的简写规则</title>
<style>
.box01{
width: 300px;
height:300px;
/*padding-top:10px;*/
/*padding-right:20px;*/
/*padding-bottom:30px;*/
/*padding-left:40px;*/
padding:10px 20px 30px 40px; /* 内边距上右下左简写*/
}
.box02{
width: 150px;
height: inherit;/*inherit:继承，好处就是父盒子改了高度，子盒子会随之改变*/
border-top-color:red;
border-top-width: 15px;
border-top-style:solid ;
/*右边框简写*/
border-right:25px blue dotted;
}
</style>
</head>
<body>
<div class="box01">
<div class="box02"></div>
</div>
</body>
</html>