gracias, un saludo a todos :).
<html>
<head>
<title>prueba</title>
<style type="text/css">
body {background-color: #99CC00;margin-left: 0px;margin-top: 0px;margin-right: 0px;margin-bottom: 0px;}
#cont {width:750px; height:497px; margin-right:auto; margin-left:auto; margin-top:30px;border-bottom:#FFFFFF 1px solid;}
#sup {width:750px; height:90px;border-bottom:#FFFFFF 1px dotted;}
#cnt {width:750px; height:250px; margin-top:2px; border-top:#FFFFFF 1px dotted; background-color:#FFFFFF;margin-bottom:0px;}
#sp {width:750px; height:7px; margin-top:0px; background-image:url(imagenes/fnd_sp.png); background-repeat:repeat-x;}
#menuh {width:750px; height:42px; margin-top:1px; background-color:#FFFFFF; border-top:#000000 7px solid;}
#sbfijos {width:750px; height:77px; margin-top:2px; background-color:#FFFFFF;}
#pie {width:750px; height:7px; margin-top:1px; background-color:#c0c0c0;border-bottom:#FFFFFF 4px solid;border-top:#FFFFFF 2px solid;}
#menu {list-style:none;}
#menu {list-style:none;margin:0;padding:0;}
#menu li {margin:2px;padding:2px;border:0px dashed #000000;}
#menu {list-style:none;margin:0;padding:0;}
#menu li {margin:2px;padding:2px;border:0px dashed #FF9900;float:left;}
#menu {list-style:none;margin:0;padding:0;}
#menu li {margin:2px;padding:0;float:left;}
#menu li a {display:block;width:110px;padding:4px 0;text-decoration:none;text-align:center;font-size:11px; font-family:Arial, Helvetica, sans-serif;color:#000000; background-image:url(imagenes/bgmenu.png); border-bottom:2px solid #8a1415;padding-top:18px;}
#menu li a:hover {color:#888888;background-color:#ffffff; border-bottom-color:#000000;padding-top:20px;}
</style>
</head>
<body>
<div id="cont">
<div id="sup">   ; & nbsp; &nb sp;   ; & nbsp; &nb sp;   ; & nbsp; &nb sp;   ; & nbsp; &nb sp;   ;cabecera</div>
<div id="cnt"></div>
<div id="sp"></div>
<div id="menuh">menu</div>
<div id="sbfijos">
<div align="right"></div>
</div>
<div id="pie"></div>
</div>
</body>
</html>
Mode Lineal
