前端盒子模型代码实现
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>Document</title>
<style>
*{margin: 0;
padding: 0;}
#box1{
width: 200px;
height: 200px;
background: red;
margin-bottom: 20px;
}
#box2{
width: 200px;
height: 200px;
background: yellow;
margin-top: 10px;
}
</style>
</head>
<body>
<p id="box1"></p>
<p id="box2">box2</p>
</body>
</html>