lovecoding
/
VIP20


			
							1234567891011121314151617181920212223242526272829303132333435363738394041424344454647484950515253545556575859606162636465666768697071727374757677787980818283848586878889909192939495
							<!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>Document</title>
  <style>
    /* div  后面的第一个p标签 */
    /* div + p{
      background: red;
    } */
    /* div  后面所有的p标签 */
    /* div ~ p{
      background: red;
    } */

    /* li带有class的标签 */
    /* li[class] {
      background: red;
    } */
    /* li[class='a']{
      background: red;
    } */
    
    /* 只包含a */
    /* li[class~='a']{
      background: red;
    } */
    /* 首字母为a */
    /* li[class^='a']{
      background: red;
    } */
    /* 包含a */
    /* li[class*='a']{
      background: red;
    } */
    /* 结尾为b */
    /* li[class$='b']{
      background: #000;
    } */


    /* li:last-child{
      background: red;
    }
     */
    /* li:nth-child(4){
      background: red;
    } */
    /* li:nth-child(even){
      background: red;
    }
    li:nth-child(odd){
      background: pink;
    } */

    #div1::after{
      content: 'xixixi';
      background: pink;
    }
    #div1::before{
      content: 'hhehehehehhee';
      background: green;
    }

  </style>
</head>
<body>
  <!-- 
    id选择符
    元素选择符
    class选择符
    关系选择符
    属性选择符
    伪类选择符
    伪对象选择符
  -->
  <p>0000000000</p>
  <div>1111111111</div>
  <p>22222222222</p>
  <p>3333333333</p>
  <p>44444444444</p>
  <ul>
    <li class="aa">11111</li>
    <li class="a">22222</li>
    <li class="ab">33333</li>
    <li class="aa">44444</li>
    <li class="b">555555</li>
    <li class="ba">666666</li>
  </ul>
  <div id="div1">hahhahhhah</div>
  <p>xxxxxx</p>
</body>
</html>