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编码猿
2024-09-27 02:06:13 +08:00
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<!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>盒子模型</title>
<style>
body {
margin: 0;
}
.box {
width: 100px;
height: 100px;
background: red;
/* margin: 10px; 表示同时设置上右下左四个方向 */
/* margin: 10px 20px; 上下 左右 */
/* margin: 10px 20px 30px; 上 左右 下 */
/* margin: 10px 20px 30px 40px; 上 右 下 左 */
padding: 20px;
/* border: 10px solid #000; */
}
</style>
</head>
<body>
<div class="box"></div>
</body>
</html>