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固定定位以及三行三列的定位布局
wan-PHP
Original
519 people have browsed it

1.在线QQ客服的固定定位

  1. <!DOCTYPE html>
  2. <html lang="zh-CN">
  3.   <head>
  4.     <meta charset="UTF-8" />
  5.     <meta http-equiv="X-UA-Compatible" content="IE=edge" />
  6.     <meta name="viewport" content="width=qq, initial-scale=1.0" />
  7.     <title>qq</title>
  8.     <style>
  9.       .box {
  10.         height: 15vh;
  11.         width: 40vw;
  12.         background-color: skyblue;
  13.         position: absolute;
  14.       }
  15.     </style>
  16.   </head>
  17.   <body>
  18.     <div class="box">
  19.       <img src="q.png" alt="qq" width="190" height="60" />
  20.     </div>
  21.   </body>
  22. </html>
  24. `

2.三行三列的定位布局

  1. <!DOCTYPE html>
  2. <html lang="zh-CN">
  3.   <head>
  4.     <meta charset="UTF-8" />
  5.     <meta http-equiv="X-UA-Compatible" content="IE=edge" />
  6.     <meta name="viewport" content="width=`, initial-scale=1.0" />
  7.     <title>三行三列</title>
  8.     <style>
  9.       * {
  10.         margin: 0;
  11.         padding: 0;
  12.         box-sizing: border-box;
  13.       }
  14.       html {
  15.         font-size: 10px;
  16.       }
  17.       body {
  18.         font-size: 1.6rem;
  19.       }
  20.       header,
  21.       footer {
  22.         height: 6rem;
  23.         background-color: royalblue;
  24.         text-align: center;
  25.       }
  26.       .container {
  27.         margin: 0.1rem 0;
  28.         background-color: olivedrab;
  29.         min-height: calc(100vh - 12.2rem);
  30.         position: relative;
  31.         text-align: center;
  32.       }
  33.       .container aside {
  34.         width: 20rem;
  35.         min-height: inherit;
  36.         position: absolute;
  37.         background-color: orange;
  38.       }
  39.       .container aside:first-of-type {
  40.         left: 0;
  41.         top: 0;
  42.         background-color: red;
  43.       }
  44.       .container aside:last-of-type {
  45.         right: 0;
  46.         top: 0;
  47.       }
  48.       .container main {
  49.         position: absolute;
  50.         left: 20.5rem;
  51.         right: 20.5rem;
  52.         min-height: inherit;
  53.       }
  54.     </style>
  55.   </head>
  56.   <body>
  57.     <header>页眉</header>
  58.     <div class="container">
  59.       <aside>左侧</aside>
  60.       <main>内容区</main>
  61.       <aside>右侧</aside>
  62.     </div>
  63.     <footer>页脚</footer>
  64.   </body>
  65. </html>

Correcting teacher：PHPzPHPz

Correction status：qualified

Teacher's comments：
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