HTML frames are used to divide your browser window into multiple sections
where each section can load a separate HTML document. A collection of frames
in the browser window is known as a frameset. The window is divided into
frames in a similar way the tables are organized: into rows and columns.
<!DOCTYPE html>
<html>
<head>
<title>HTML Frames</title>
</head>
<frameset rows = "10%,80%,10%">
<frame name = "top" src = "/html/top_frame.htm" />
<frame name = "main" src = "/html/main_frame.htm" />
<frame name = "bottom" src = "/html/bottom_frame.htm" />
<noframes>
<body>Your browser does not support frames.</body>
</noframes>
</frameset>
</html>