代码示例：（标识：css_buttons_padding）
<!DOCTYPE html>
<html>
<head>
<style>
.button {
background-color: #4CAF50; /* 绿色 */
border: none;
color: white;
text-align: center;
text-decoration: none;
display: inline-block;
font-size: 16px;
margin: 4px 2px;
cursor: pointer;
}
.button1 {padding: 10px 24px;}
.button2 {padding: 12px 28px;}
.button3 {padding: 14px 40px;}
.button4 {padding: 32px 16px;}
.button5 {padding: 16px;}
</style>
</head>
<body>
<h1>按钮大小</h1>
<p>通过 padding 属性改变按钮的内边距：</p>
<button class="button button1">10px 24px</button>
<button class="button button2">12px 28px</button>
<button class="button button3">14px 40px</button>
<button class="button button4">32px 16px</button>
<button class="button button5">16px</button>
</body>
</html>
