| 123456789101112131415161718192021222324252627282930313233343536373839404142434445 | 
							- <!DOCTYPE html>
 
- <html lang="en">
 
- <head>
 
-     <meta charset="UTF-8">
 
-     <title>Title</title>
 
- </head>
 
- <style>
 
-   /*
 
-     选择器: 选中元素
 
-       元素选择 标签 h1{}
 
-       class 选择器 选择多个
 
-       id 选择器 #
 
-    */
 
-   h1 {
 
-     color: red; font-size: 12px;
 
-   }
 
-   .p1{
 
-     text-align: center;
 
-     color: yellow;
 
-     font-size: 16px;
 
-   }
 
-   #p2{
 
-     font-size: 16px;
 
-   }
 
- </style>
 
- <body>
 
-   <h1>你好 css</h1>
 
-   <p class="p1">你好 css1</p>
 
-   <p class="p1">你好 css2</p>
 
-   <p class="p1">你好 css3</p>
 
-   <p class="p1">你好 css4</p>
 
-   <p id="p2" >你好 css5</p>
 
- </body>
 
- </html>
 
 
  |