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                ![](https://img.kancloud.cn/f0/60/f06014e988be5c2e8c049b20662da4ae_782x584.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> <div class="container"> <a href="#" style="--i:1">點贊</a> <a href="#" style="--i:2">關注</a> <a href="#" style="--i:3">評論</a> <a href="#" style="--i:4">分享</a> <a href="#" style="--i:5">收藏</a> </div> <style> * { /* 初始化 取消頁面元素的內外邊距 */ margin: 0; padding: 0; } .container { /* 彈性布局 水平、垂直居中 */ display: flex; justify-content: center; align-items: center; /* 讓子元素垂直排列 */ flex-direction: column; /* 100%窗口寬度、高度 */ width: 100vw; height: 100vh; /* 背景徑向漸變 */ background: radial-gradient(circle at center, #555, #000); } .container a { /* 相對定位 */ position: relative; /* 將a元素轉為塊級元素,不然無法設置寬和高 */ display: block; width: 140px; height: 60px; line-height: 60px; text-align: center; margin: 40px; color: plum; text-decoration: none; font-size: 20px; /* 動畫過渡 */ transition: all 0.3s ease-in-out; /* 改變各個元素的顏色【劃重點】 */ /* hue-rotate是顏色濾鏡,可以加不同的度數來改變顏色,這里我們用了calc自動計算函數,以及var函數來調用我們給每一個a設置的不同自定義屬性1~5,然后分別乘以60度,就能夠分別得到不同的度數 */ filter: hue-rotate(calc(var(--i)*60deg)); } .container a::before, .container a::after { /* 將兩個偽元素的相同部分寫在一起 */ content: ""; position: absolute; width: 20px; height: 20px; border: 2px solid plum; /* 動畫過渡 最后的0.3s是延遲時間 */ transition: all 0.3s ease-in-out 0.3s; } .container a::before { top: 0; left: 0; /* 刪除左邊元素的右、下邊框 */ border-right: 0; border-bottom: 0; } .container a::after { bottom: 0; right: 0; /* 刪除右邊元素的左、上邊框 */ border-top: 0; border-left: 0; } .container a:hover { background-color: plum; color: #000; /* 發光效果和倒影 */ box-shadow: 0 0 50px plum; /* below是下倒影 1px是倒影的元素相隔的距離 最后是個漸變顏色 */ -webkit-box-reflect: below 1px linear-gradient(transparent, rgba(0, 0, 0, 0.3)); /* 設置以上屬性的延遲時間 */ transition-delay: 0.4s; } .container a:hover::before, .container a:hover::after { width: 138px; height: 58px; transition-delay: 0s; } </style> <script> </script> </body> </html> ```
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