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| <!DOCTYPE html>
| <html lang="en">
| <head>
| <meta charset="UTF-8">
| <title>Box Model</title>
| <style>
| div {
| color: white;
| border: 3px solid red;
| padding: 10px;
| width: 100px;
| margin-bottom: 10px;
| }
|
| .border-box {
| box-sizing: border-box;
| }
|
| .content-box {
| box-sizing: content-box;
| }
| </style>
| </head>
| <body>
| <div class="content-box">content-box</div>
| <div class="border-box">border-box</div>
| </body>
| </html>
|
|
