/*basic*/
html,body{
margin: 0px;
height: 100%;
background-color:#FFFFFF;
}
#controller{
width: 100%;
height: 100%;
}

#contentholder{
position: absolute;
left: 50%;
top: 0%;
width: 1000px;
height: 800px;
border: 0px solid #000;
margin-left: -500px; /* half the width */
margin-top: 0px; /* half the height */
background-color:#FFFFFF;
}