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实例演示字体图标的引入与显示与媒体查询(移动优先)
alexcy的学习博客
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1.实例演示字体图标的引入

  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=device-width, initial-scale=1.0">
  7.     <title>Document</title>
  8.     <link rel="stylesheet" href="./unicode.css">
  9.     <link rel="stylesheet" href="class.css">
  10.     <style>
  11.         /* unicode */
  12.         .iconfont.unicode {
  13.             font-family: iconfont;
  14.         }
  15.         button {
  16.             font-size: 2em;
  17.             color: coral;
  18.             transition: all .5s;
  19.         }
  20.         button:hover {
  21.             font-size: 3em;
  22.         }
  23.     </style>
  24. </head>
  25. <body>
  26.     <!-- 1.unicode -->
  27.     <button class="iconfont unicode">&#xe697;添加用户</button>
  28.     <button class="iconfont icon-shezhitianchong">设置</button>
  29. </body>
  30. </html>

2.媒体查询

指令：@media 默认screen即屏幕
属性：max-width min-width
操作符：and not onlu
书写顺序约定
1、移动端：从小到大
2、PC端：从大到小

  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=device-width, initial-scale=1.0">
  7.     <title>Document</title>
  8. </head>
  9. <body>
  10.     <button class="btn sm">按钮1</button>
  11.     <button class="btn md">按钮2</button>
  12.     <button class="btn lg">按钮3</button>
  13.     <style>
  14.         html{
  15.             font-size: 0.625rem;
  16.         }
  17.         .btn {
  18.             background-color: coral;
  19.             color: white;
  20.             border: none;
  21.             outline: none;
  22.         }
  24.         .btn:hover {
  25.             cursor: pointer;
  26.             opacity: .5;
  27.             transition: all .3s;
  28.         }
  29.         .btn.sm {
  30.             font-size: 1.2rem;
  31.         }
  32.         .btn.md {
  33.             font-size: 1.6rem;
  34.         }
  35.         .btn.lg {
  36.             font-size: 1.8rem;
  37.         }
  38.         /* 1.宽度小于375px,字号改为12px */
  39.         @media (max-width: 375px) {
  40.             html{
  41.                 font-size:12px;
  42.             }
  43.         }
  44.         @media (min-width:600px) {
  45.             html{
  46.                 font-size: 16px;
  47.             }
  48.         }
  49.         @media (min-width:375px) and (max-width:600px) {
  50.             html{
  51.                 font-size: 14px;
  52.             }
  53.         }
  54.     </style>
  55. </body>
  56. </html>
Correcting teacher：PHPzPHPz

Correction status：qualified

Teacher's comments：继续加油，下次可以添加作业结果截图就更好了
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