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字体图标和媒体查询实例
          
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  1. <!DOCTYPE html>
  2. <html lang="en">
  3. <head>
  4.     <meta charset="UTF-8">
  5.     <meta name="viewport" content="width=device-width, initial-scale=1.0" />
  6.     <title>1025作业</title>
  7. <!--    作业内容：-->
  8. <!--    1. 实例演示字体的图标的使用,重点在class方式 -->
  9. <!--    2. 实例演示媒体查询原理,并描述媒体查询的顺序-->
  10. </head>
  11. <link rel="stylesheet" href="../img/iconfont/iconfont.css">
  12. <style>
  13.     .icon-shouye{
  14.         color: green;
  15.         font-size: 21px;
  16.     }
  17.     .icon-zhuce:hover{
  18.         color: blue;
  19.     }
  20. </style>
  21. <body>
  22. <h3>1. 实例演示字体的图标的使用,重点在class方式</h3>
  23. <!--注意：图标采用下载本地引用-->
  24. <!--字体图标的字体代码需要放到clas类里面-->
  25. <i class="iconfont icon-shouye">首页图标</i>
  26. <span><i class="iconfont icon-zhuce">注册图标</i> </span>
  27. <h3>2. 实例演示媒体查询原理,并描述媒体查询的顺序</h3>
  28. <pre>媒体查询字面含义：
  29.      媒体: 屏幕, 手机, 打印机
  30.      查询: 查询媒体宽度来确定元素展示方式</pre>
  31. <div class="iup1"><label>1 <input type="text" placeholder="框1:设置字体大小56px"></label></div>
  32. <div class="iup2"><label>2 <input type="text" placeholder="框2:设置红色字体"></label></div>
  33. <div class="iup3"><label>3 <input type="text "placeholder="框3:设置边框线蓝色"></label></div>
  35. <style>
  36.     /*默认字体大小1rem =10px*/
  37.     html{font-size: 10px}
  40.     .iup1>label{font-size: 1rem}
  41.     /*如果设备尺寸小于于400px,设置框1字体大小为56px,框2的字体颜色为红色，框3的边框线蓝色*/
  42.     @media (max-width: 400px) {
  43.        html{ font-size:10px;}
  44.         .iup1>label{font-size:4rem }
  45.         .iup2{color: red}
  46.         .iup3{border: 1px solid blue}
  47.     }
  48.     /*如果设备尺寸在450px~475pxpx之间，框1背景颜色修改为绿色，body背景颜色改为#d9dbda，html根字号改为15px */
  49.     @media (min-width: 450px) and (max-width: 475px){
  50.         .iup1{background-color: green}
  51.         body {background-color: #d9dbda}
  52.         html {font-size: 15px}
  53.     }
  54. </style>
  55. </body>
  56. </html>

运行结果：

要求解析：设备尺寸小于400px,设置框1字体大小为56px,框2的字体颜色为红色，框3的边框线蓝色

设备尺寸小于400px时的变化

要求解析： 如果设备尺寸在450px~475pxpx之间，框1背景颜色修改为绿色，body背景颜色改为#d9dbda，html根字号改为15px

Correcting teacher：PHPzPHPz

Correction status：qualified

Teacher's comments：完成的很好，继续加油
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