这个是你理解有错,一个html页面就是一个整体,当你想用iframe把它引用到令一个页面时,你就要把这个被引用的页面当成那个页面的一部分来进行编辑,看下面的例子:
1。这是个整体的页面;
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "
http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="
http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>Untitled Document</title>
<style type="text/css">
.tt {
color: #F00;
}
</style>
</head>
<body>
<table width="100%" border="0" cellspacing="2" cellpadding="2">
<tr>
<td><h1>这是头部</h1></td>
</tr>
<tr>
<td align="center"><h1 class="tt">这是内容</h1></td>
</tr>
<tr>
<td>这里是结尾</td>
</tr>
</table>
</body>
</html>
2.保存这个页面为2.html
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "
http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="
http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>Untitled Document</title>
<style type="text/css">
.tt {
color: #F00;
}
</style>
</head>
<body>
<h1 class="tt">这是内容</h1>
</body>
</html>
3。引用上面保存的2.html页面
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "
http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="
http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>Untitled Document</title>
<style type="text/css">
.tt {
color: #F00;
}
</style>
</head>
<body>
<table width="100%" border="0" cellspacing="2" cellpadding="2">
<tr>
<td><h1>这是头部</h1></td>
</tr>
<tr>
<td align="center"><iframe src="2.html" width="160" height="60" frameborder="0" scrolling="no"></iframe></td>
</tr>
<tr>
<td>这里是结尾</td>
</tr>
</table>
</body>
</html>