<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>Title</title>
<style>
*{
margin:0;
padding:0;
}
div{
width: 100px;
height:100px;
border: 10px solid red;
padding:10px 20px 30px 40px;
}
</style>
</head>
<body>
padding:
padding-top:上内边距
padding-right:右内边距
padding-bottom:下内边距
padding-left:左内边距
padding的复合写法:
1.padding:10px;上右下左内边距都是10px
2.padding:10px 30px;上下内边距10px,左右内边距30px
3.padding:10px 20px 30px;上:10;右:20;下:30;左:20
4.padding:10px 20px 30px 40px;
<div>123</div>
</body>
</html>
