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                合規國際互聯網加速 OSASE為企業客戶提供高速穩定SD-WAN國際加速解決方案。 廣告
                ![](https://img.kancloud.cn/32/2c/322cc53ca9ba102533e5631981a49007_872x336.png) ``` <!DOCTYPE html> <html lang="en"> <head> <meta charset="UTF-8"> <meta http-equiv="X-UA-Compatible" content="IE=edge"> <meta name="viewport" content="width=device-width, initial-scale=1.0"> <title>Document</title> </head> <body> <a href="#">button</a> <style> * { /* 初始化 取消頁面的內外邊距 */ margin: 0; padding: 0; } body { /* 彈性布局 讓頁面元素水平、垂直居中 */ display: flex; justify-content: center; align-items: center; /* 設置body高度為100%窗口高度 */ height: 100vh; background-color: #000; } a { position: relative; width: 400px; height: 100px; line-height: 100px; text-align: center; text-decoration: none; text-transform: uppercase; font-size: 24px; color: #fff; /* 背景漸變 */ background: linear-gradient(to right, #03a9f4, #f441a5, #ffeb3b, #09a8f4); /* 背景漸變色大小 */ background-size: 400%; /* 圓角 */ border-radius: 50px; z-index: 1; } /* 發光效果 */ a::before { content: ""; position: absolute; top: -5px; left: -5px; bottom: -5px; right: -5px; /* 背景漸變 */ background: linear-gradient(to right, #03a9f4, #f441a5, #ffeb3b, #09a8f4); /* 背景漸變色大小 */ background-size: 400%; /* 圓角 */ border-radius: 50px; z-index: -1; /* 設置模糊度 顯示發光效果 */ filter: blur(20px); } a:hover { /* 動畫:名稱 時間 infinite是無限次播放 */ animation: streamer 8s infinite; } a:hover::before { /* 動畫:名稱 時間 infinite是無限次播放 */ animation: streamer 8s infinite; } /* 定義動畫 */ @keyframes streamer { 100% { /* 背景位置 */ background-position: -400% 0; } } </style> <script> </script> </body> </html> ```
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