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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>
- /* css 权重值 */
- /* ID选择器 > 类选择器 > 标签选择 */
- div{
- font-size: 30px;
- color: green;
- }
- .box1{
- color: red;
- }
- #div1{
- color: blue;
- }
- </style>
- </head>
- <body>
- <div class="box1" id="div1">hello world</div>
- </body>
- </html>
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