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iframe简单后台实例和html样式的使用
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iframe简单后台实例

  1. <!DOCTYPE html>
  2. <html lang="en">
  3. <head>
  4.     <meta charset="UTF-8">
  5.     <meta http-equiv="X-UA-Compatible" content="IE=edge">
  6.     <meta name="viewport" content="width=device-width, initial-scale=1.0">
  7.     <title>iframe简单后台布局</title>
  8.     <style>
  9.         body {
  10.             display: grid;
  11.             grid-template-columns: 12em 1fr;
  12.             grid-template-rows: 5em 1fr;
  13.         }
  14.         body header {
  15.             grid-column-end: span 2;
  16.             background-color: seagreen;
  17.             display: flex;
  18.             /* padding: 2em; */
  19.         }
  20.         body header h1 {
  21.             display: flex;
  22.         }
  23.         body header section {
  24.             color: red;
  25.             margin-left: auto;
  26.             padding-right: 2em;
  27.         }
  28.         body header section i {
  29.             color: aliceblue;
  30.             margin-right: 1em;
  31.         }
  32.         nav {
  33.             display: grid;
  34.             grid-auto-rows: min-content;
  35.             background-color: lightyellow;
  36.             border-right: 1px solid currentColor;
  37.             padding: 1em;
  38.             list-style: none;
  39.         }
  40.         nav a {
  41.             text-decoration: none;
  42.             padding: 0.5em 0;
  43.             border-bottom: 1px solid #555;
  44.         }
  45.         body iframe {
  46.             width: calc(100vw - 10em);
  47.             height:calc(100vw - 60em);
  48.             border: none;
  49.             background-color: #efefef;
  50.         }
  51.     </style>
  52. </head>
  53. <body>
  54.     <!-- 顶部 -->
  55.     <header>
  56.         <h1>简单管理后台</h1>
  57.         <section>
  58.             <i>admin</i>
  59.             <button type="button">退出</button>
  60.         </section>
  61.     </header>
  62.     <!-- 左侧 -->
  63.     <nav>
  64.         <a href="../0116/work01.html" target="content">课程表</a>
  65.         <a href="work02.html" target="content">样式设置和优先级</a>
  66.         <a href="../0118/work01.html" target="content">html选择器</a>
  67.     </nav>
  68.     <!-- 内容主体 -->
  69.     <iframe src="" name="content" frameborder="0">
  71.     </iframe>
  72. </body>
  73. </html>

html样式来源和优先级

  1. <!DOCTYPE html>
  2. <html lang="en">
  3. <head>
  4.     <meta charset="UTF-8">
  5.     <meta http-equiv="X-UA-Compatible" content="IE=edge">
  6.     <meta name="viewport" content="width=device-width, initial-scale=1.0">
  7.     <title>html样式来源与优先级实例</title>
  8.     <!-- 外部样式引用方式1 link标签(异步)) -->
  9.     <!-- <link rel="stylesheet" href="static/css/style.css"> -->
  10.     <style>
  11.         /* 外部样式引用方式2 指令 @import url()(同步)  */
  12.         @import url('static/css/style.css');
  13.     </style>
  14. </head>
  15. <body>
  16.     <!-- 1、设置行内样式 -->
  17.     <p style="color: red;">我是行内样式tag.style</p>
  18.     <!-- 2、设置文档样式 -->
  19.     <style>
  20.         p:nth-child(n+2) {
  21.             color: green;
  22.         }
  23.     </style>
  24.     <p>我是文档样式"<"style">"</p>
  25.     <!-- 3、引用外部样式 -->
  26.     <h2>我通过link标签(@import 指令)引用外部样式</h2>
  27.     <hr/>
  28.     <label for="">样式优先级:</label>
  29.     <h2 style="color:blue;">行内样式 > 文档样式 > 外部样式</h2>
  30. </body>
  31. </html>

Correcting teacher：PHPzPHPz

Correction status：qualified

Teacher's comments：
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