init

2023-05-01 19:37:40 +08:00
commit da2c0fadf7
133 changed files with 29002 additions and 0 deletions
--- a/Html-Css/22-定位层级.html
+++ b/Html-Css/22-定位层级.html
@@ -0,0 +1,67 @@
+<!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>定位层级</title>
+
+    <style>
+
+        #app,#app2 {
+            background-color: salmon;
+            width: 400px;
+            height: 400px;
+            position: relative;
+            z-index: 0;
+        }
+        #app {
+            z-index: 99;
+        }
+        .box {
+           
+            width: 100px;
+            height: 100px;
+        }
+
+        .box1 {
+            height: 150px;
+            background-color: rgb(255, 0, 0);
+            position: absolute;
+
+            z-index: 1;
+
+        }
+        .box2 {
+            width: 150px;
+            background-color: antiquewhite;
+            position: absolute;
+            z-index: 0;
+        }
+        #app2 .box1 {
+            top: -249px;
+        }
+        #app .box2 {
+            top: 100px;
+        }
+    </style>
+
+</head>
+
+<body>
+
+<div id="app">
+    <div class="box box1">box1</div>
+    <div class="box box2">box2</div>
+</div>
+    <div id="app2">
+        <div class="box box1">box1</div>
+        <div class="box box2">box2</div>
+    </div>
+<!-- 子绝父相 -->
+
+</body>
+
+</html>