<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title>标题</title>
<!-- 内部样式 -->
<style type="text/css">
h1{
border: 5px dashed red;
width: 500px;
height: 100px;
color: red;
}
</style>
</head>
<body>
<h1>这是一级标题</h1>
<h1 style="font-size: 18px;">这是第嵌入样式标题</h1>
</body>
</html>
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title>标题</title>
<!-- 内部样式 -->
<style type="text/css">
<!-- h1{
border: 5px dashed red;
width: 500px;
height: 100px;
color: red;
} -->
</style>
<link rel="stylesheet" type="text/css" href="css/new_file.css"/>
</head>
<body>
<h1>这是一级标题外部样式</h1>
<h1 style="font-size: 18px;">这是嵌入样式标题</h1>
</body>
</html>
h1{
border: 5px dashed red;
width: 500px;
height: 100px;
color: red;
}
