css folding style (1) - three ways to use css style-CSS Tutorial-php.cn

css folding style (1) - three ways to use css style

黄舟

Release： 2016-12-28 15:59:04

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css folding style (1) - three ways to use css style

1. The declaration tag of css tells the browser what form it should use to parse you, usually: Because html5 supports downward compatibility, see the details Pictured above.

2. How to use css style:
(1) Internal link style sheet:
demo.html

<!DOCTYPE html>  
<html>  
<head>  
    <title>内链样式使用</title>  
    <meta charset="utf-8">  
</head>  
<body style="background-color:green; margin:0; padding:0;">  
    <h1>内链样式使用</h1>  
    <div style="background-color:red;font-size:20px;">  
    内链样式使用  
    <div>  
</body>  
</html>

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(2) Embedded style sheet:
demo .html

<!doctype html>  
<html>  
<head>  
    <meta charset="utf-8">  
    <title>嵌入式样式</title>  
    <style type="text/css">  
    <!--HTML标记定义 -->  
        body{  
            background:yellow;font-size:20px  
        }  
        div{  
            background:red;font-size:40px  
        }    
  
          
    </style>  
</head>  
      
<body>  
    <h1>嵌入式样式</h1>  
    <div>嵌入式样式</div>  
</body>  
  
</html>

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(2) Introduced style sheet:
demo.htnl

<!DOCTYPE html>  
<html>  
<head>  
    <title>引入式样式</title>  
    <meta charset="utf-8">  
      
    <!--style.css就是指定的样式，href为指定路径作用-->     
    <link rel="stylesheet" type="text/css" href="style.css">  
      
     
</head>  
<body>  
    <h1>引入式样式</h1>  
    <a href="http://www.baidu.com" target="_blank">百度</a>  
    <br>  
    <p>引入式样式</p>  
    <div>css的html选择器</div>  
</body>  
  
</html>

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style.css

/* HTML样式定义   */  
body{  
    background-color:yellow;  
    color:#fff  
}  
  
div{  
    background:red;font-size:20px  
}

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