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【在HTML中调用CSS的方法】

2015-11-20 01:27 666 查看

1.内联式CSS样式

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"
"http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html;charset=utf-8">
<title>内联样式</title>
</head>
<body>
<p style="font-size: 40px;color: red">红色</p>
<p style="font-size: 40px;color: green">绿色</p>
<p style="font-size: 40px;color: blue">蓝色</p>
</body>
</html>

2.内嵌式CSS样式

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"
"http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html;charset=utf-8">
<title>内嵌样式</title>
<style type="text/css">
.red{
color:red;
}
.green{
color: green;
}
</style>
</head>
<body>
<p class="red">红1</p>
<p class="green">绿1</p>
<p class="red">红2</p>
<p class="green">绿2</p>
</body>
</html>

3.导入外部CSS样式

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"
"http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html;charset=utf-8">
<title>导入外部样式</title>
<style type="text/css">
@import url(../css/color.css);
</style>
</head>
<body>
<p class="red">红1</p>
<p class="green">绿1</p>
<p class="red">红2</p>
<p class="green">绿2</p>
</body>
</html>

4.链接式CSS样式

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"
"http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html;charset=utf-8">
<title>链接式样式表</title>
<link rel="stylesheet" type="text/css" href="../css/color.css">
</head>
<body>
<p class="red">红1</p>
<p class="green">绿1</p>
<p class="red">红2</p>
<p class="green">绿2</p>
</body>
</html>

CSS样式生效的优先级问题：内联样式>嵌入式样式>导入样式>链接样式

全局选择器：

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"
"http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html;charset=utf-8">
<title>全局选择器</title>
<style type="text/css">
*{
color: red;
font-size: 14px;
}
</style>
</head>
<body>
<p class="red">红1</p>
<p class="green">绿1</p>
<p class="red">红2</p>
<p class="green">绿2</p>
</body>
</html>

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