401-使用框架切分网页.html
<html>
<frameset rows="25%, 75%">
<frame src="frame_a.html" name="top" />
<frame src="frame_b.html" name="bottom" />
</frameset>
</html>
frame_a.html
<!DOCTYPE html>
<html>
<head>
<title>frame a</title>
<meta ="Content-Type" content=
"text/html;charset=utf-8"/>
</head>
<body>
frame a
</body>
</html>
frame_b.html
<!DOCTYPE html>
<html>
<head>
<title>frame b</title>
<meta ="Content-Type" content=
"text/html;charset=utf-8"/>
</head>
<body>
frame b
</body>
</html>
frame_c.html
<!DOCTYPE html>
<html>
<head>
<title>frame b</title>
<meta ="Content-Type" content=
"text/html;charset=utf-8"/>
</head>
<body>
frame b
</body>
</html>
