<!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>填充</title>
<style>
p {
background-color: yellow;
}
p.padding {
padding-top: 25px;
padding-bottom: 25px;
padding-left: 50px;
padding-right: 50px;
}
</style>
</head>
<body>
<!-- 修改一个标签，另外一个标签同时修改 插件 Auto Rename Tag -->
<h3> 填充- 单边内边距属性</h3>
<p>这是一个没有指定填充边距的段落。</p>
<p class="padding">This is a paragraph that specifies padding margins</p>
</body>
</html>
效果