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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>
- p {
- text-indent: 2em;
- }
- #box {
- width: 0;
- height: 0;
- border: 30px solid;
- border-color: white;
- border-bottom-color: red;
- /* width: 300px;
- height: 300px; */
- /* border-width: 20px;
- border-style: double;
- border-color: red; */
- /* border: 1px solid red; */
- /* border-top: 1px solid red; */
- }
- /*
- border: 复合属性 边框
- 粗细
- border-width
- 样式
- border-style
- solid 实线；dotted 点线; dashed 虚线；double 双边框
- 颜色
- border-color
- 上边框 border-top
- 下边框 border-bottom
- 左边框 border-left
- 右边框 border-right
- */
- </style>
- </head>
- <body>
- <div id="box"></div>
- <p>哈哈红红火火恍恍惚惚哈哈红红火火恍恍惚惚哈哈红红火火恍恍惚惚哈哈红红火火恍恍惚惚</p>
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