<style>
#div {
position:absolute;
top:50%;
left:50%;
width:530px;
height:177px;
margin-top: -120px;
margin-left: -265px;
}
</style>
#div {
position:absolute;
top:50%;
left:50%;
width:530px;
height:177px;
margin-top: -120px;
margin-left: -265px;
}
</style>