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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: 400px;
- height: 400px;
- background-color: aqua;
- /* border-radius: 50%; */
- border-top-right-radius: 20px;
- /*
- 圆角边框：border-radius
- border-radius:50%;圆形
- border-top-right-radius 右上角
- border-top-left-radius 左上角
- border-bottom-left-radius 左下角
- border-bottom-right-radius 右下角
- */
- }
- input {
- border:1px solid #f00;
- /* outline: none; */
- /* 轮廓
- outline:width style color;
- */
- outline: 3px solid #0f0;
- }
- </style>
- </head>
- <body>
- <div></div>
- <input type="text">
- </body>
- </html>
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