html {
overflow: hidden;
height:100%;
}

body {
height:100%;
width: 100%;
background-color:#999900;
}

#menu {
position:fixed !important;
position:absolute;
top:0;
width:760px;
height:160px;

left: 50%;
margin-left:-380px;
}

#main {
position: absolute;
width:760px;
top: 160px;
bottom: 0px;
overflow: auto;
background-color: #ffffcc;
color: #333333;

left: 50%;
margin-left:-380px;
padding-top:15px;
}