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- <!DOCTYPE html>
- <html lang="en">
- <head>
- <meta charset="UTF-8">
- <meta name="viewport" content="width=device-width, initial-scale=1.0">
- <title>Document</title>
- <style>
- div {
- width: 200px;
- height: 200px;
- border: 2px solid #000;
- background: #00f;
- padding: 10px;
- margin: 10px;
- box-sizing: border-box;
- /* box-sizing: content-box; */
- }
- </style>
- </head>
- <body>
- <!--
- 盒模型：
- 标准盒模型：box-sizing: content-box
- width = contentWidth + border + padding;
- 怪异盒模型: box-sizing: border-box
- width = contentWidth(弹性contentWidth + border + padding)
- -->
- <div></div>
- </body>
- </html>
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