body 
{
    font-family: Trebuchet MS, Tahoma;
    background-image:url(Images/Blue_background_1.gif);
    background-color:#AAAAAA
}

#MainDiv {
    width:800px;
    top:0px; 
    MARGIN-LEFT: auto; 
    MARGIN-RIGHT: auto; 
    border:1px;
    border-style:solid;
    background-color:White;
}

#BodyDiv {
    width:800px;
    height:535px; 
    MARGIN-LEFT: auto; 
    MARGIN-RIGHT: auto; 
    border:1px;
    border-style:solid;
    background-color:Silver
}