Ejemplo de marcos HTML

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>
Yucky Yak