Ciao a tutti!

Domandone: si può impostare la larghezza totale di un frameset a una dimensione stabilita?Di base mi prende sempre la larghezza della finestra del browser...

codice html:

codice:
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Frameset//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-frameset.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
<title>Documento senza titolo</title>
<link href="css/admin.css" rel="stylesheet" type="text/css" />
</head>
<frameset rows="135px,*" cols="*" frameborder="yes" border="0" framespacing="0">
  <frame src="header.html" name="topFrame" scrolling="No" noresize="noresize" id="topFrame" title="topFrame" />
  <frameset cols="15%,*" frameborder="no" border="0" framespacing="0">
    <frame src="menu.html" name="leftFrame" scrolling="No" noresize="noresize" id="leftFrame" title="leftFrame" />
    <frame src="contenuto.html" name="mainFrame" id="mainFrame" title="mainFrame" />
  </frameset>
</frameset><noframes></noframes>
<body></body>
</html>
css:

codice:
@charset "UTF-8";
/* CSS Document */

html { width: 500px; }