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A detailed introduction to CSS style weights
- 高洛峰Original
- 2017-03-04 10:24:481704browse
InLine style(InLine style)>Internal style sheet(Internal style sheet)>External style sheet(External style sheet)
Exception: But if the external style sheet is placed inside The style sheet is quoted below, then the external style sheet > internal style sheet;
1, the weight of the inline style sheet is 1000;
2, the weight of the ID selector is 100;
3, The weight of the Class class selector is 10;
4, The weight of the HTML tag selector is 1;
The specific code is as follows:
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>CSS样式权值</title>
<style>
body{
font-size: 20px;
font-weight: 900;
}
h3{
color: yellow;
}
#redP p{
/*权值100+1=101*/
color: #f00;
/*红色*/
}
#redP p.red em{
/*权值100+1+10+1=112*/
color: #00f;
/*蓝色*/
}
#redP .red em{
/*权值100+10+1=111*/
color: #0ff;
/*亮蓝色*/
}
#redP p span em{
/*权值100+1+1+1=103*/
color: #ff0;
/*黄色*/
}
</style>
<link rel="stylesheet" href="style.css">
</head>
<body>
<h3>例外:外部样式表>内部样式表</h3>
<p id="redP">
<p class="red">
<span>
<em>emred</em>
</span>
</p>
<p>red</p>
</p>
</body>
</html>
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