fengchuanyu 2 주 전
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      2-CSS/16_伪元素.html

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2-CSS/16_伪元素.html

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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>
+        .box{
+            color: red;
+        }
+        a:link{
+            color: chartreuse;
+        }
+        a:visited{
+            color: yellow;
+        }
+        a:hover{
+            color: blue;
+            font-size: 50px;
+        }
+        a:active{
+                
+                color: green;
+        }
+        .box:hover{
+            background-color: blue;
+            width: 100px;
+            height: 100px;
+        }
+        /* li:first-child{
+            color: red;
+        }
+        li:last-child{
+            color: green;
+        } */
+        /* li:nth-child(2){
+            color: chocolate;
+        } */
+        /* li:nth-child(odd){
+            color: red;
+        }
+        li:nth-child(even){
+            color: green;
+        } */
+        /* li:nth-child(2n+1){
+            color: red;
+        } */
+    </style>
+</head>
+<body>
+    <div class="box">hello</div>
+    <a href="https://www.baidu.com">百度</a>
+    <a href="https://www.google.com">谷歌</a>
+
+    <ul>
+        <li>项目一</li>
+        <li>项目二</li>
+        <li>项目三</li>
+        <li>项目四</li>
+        <li>项目五</li>
+        <li>项目六</li>
+        <li>项目七</li>
+        <li>项目八</li>
+        <li>项目九</li>
+        <li>项目十</li>
+    </ul>
+</body>
+</html>