A priori ça n'est pas possible
C'est tout à fait faisable:
<!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>layout.global</title>
<style type="text/css">
/* resetting */
html,body,div,span,object,iframe,h1,h2,h3,h4,h5,h6,p,blockquote,pre,abbr,address,cite,code,del,dfn,em,img,ins,kbd,q,samp,small,strong,sub,sup,var,b,i,dl,dt,dd,ol,ul,li,fieldset,form,label,legend,table,caption,tbody,tfoot,thead,tr,th,td,article,aside,figure,footer,header,hgroup,menu,nav,section,menu,time,mark,audio,video{border:0;outline:0;font-size:100%;vertical-align:baseline;background:transparent;margin:0;padding:0}article,aside,figure,footer,header,hgroup,nav,section{display:block}nav ul{list-style:none}blockquote,q{quotes:none}blockquote:before,blockquote:after,q:before,q:after{content:none}a{border:0;font-size:100%;vertical-align:baseline;background:transparent;margin:0;padding:0}ins{background-color:#ff9;color:#000;text-decoration:none}mark{background-color:#ff9;color:#000;font-style:italic;font-weight:700}del{text-decoration:line-through}abbr[title],dfn[title]{border-bottom:1px dotted #000;cursor:help}table{border-collapse:collapse;border-spacing:0;font-size:inherit;font:100%}hr{display:block;height:1px;border:0;border-top:1px solid #ccc;margin:1em 0;padding:0}input,select{vertical-align:middle}body{font-size:small;font:x-small;line-height:1.22}select,input,textarea{font:99% arial,helvetica,"Nimbus Sans L", "Bitstream Vera Sans", sans-serif}code,pre{font-family:"Courier New", monospace, serif;font-size:1em}body,select,input,textarea{color:#444}textarea{-moz-appearance:textfield;-webkit-appearance:textfield}h1,h2,h3,h4,h5,h6{font-weight:700;text-rendering:optimizeLegibility}html{-webkit-font-smoothing:antialiased;/*overflow-y:scroll*/}a:active{outline:none}a:focus{outline:thin dotted}a,a:active,a:visited{color:#607890}a:hover{color:#036}ul{margin-left:30px}ol{margin-left:30px;list-style-type:decimal}small{font-size:85%}strong,th{font-weight:700}td,td img{vertical-align:top}sub{vertical-align:sub;font-size:smaller}sup{vertical-align:super;font-size:smaller}pre{white-space:pre-line;word-wrap:break-word;padding:15px}input[type=checkbox]{vertical-align:baseline}a[href],input[type=submit],input[type=image],label[for],select,button,.pointer{cursor:pointer}a:link{-webkit-tap-highlight-color:#FF5E99}button{width:auto;overflow:visible}.ie7 img{-ms-interpolation-mode:bicubic}input[type=radio],.ie6 input{vertical-align:text-bottom}::-moz-selection,::selection{background:#000;color:#fff;text-shadow:none}@media print{*{background:transparent!important;color:#444!important;text-shadow:none}a,a:visited{color:#444!important;text-decoration:underline}a:after{content:" (" attr(href) ")"}abbr:after{content:" (" attr(title) ")"}.ir a:after{content:""}pre,blockquote{border:1px solid #999;page-break-inside:avoid}img{page-break-inside:avoid}@page{margin:.5cm}p,h2,h3{orphans:3;widows:3}h2,h3{page-break-after:avoid}}
/* global */
html, body {
width:100%;
height:100%;
overflow:hidden;
}
body {
background-color:#FFFFFF;
color:#666666;
font: 12px/1.231 Verdana, Arial, Sans Serif;
}
/* GLOBAL */
#global {
}
/* LEFT MENU */
#leftpanel {
position:fixed;
top:0px;
bottom:0;
left:0;
width:150px;
z-index:500;
background-color:#232323;
}
/* MAIN */
#main {
position:fixed;
top:0px;
right:0;
left:150px;
bottom:0;
background-color:#F9F9F9;
overflow-x:auto;
overflow-y:scroll;
}
</style>
</head>
<body>
<!-- GLOBAL -->
<div id="global">
<!-- LEFT PANEL -->
<div id="leftpanel">
LEFT
</div>
<!-- END LEFT PANEL -->
<!-- MAIN -->
<div id="main">
MAIN
</div>
<!-- END MAIN -->
</div>
<!-- END GLOBAL -->
</body>
</html>