.slot.position1x1.size6x3 {width:970px; height:470px; left:0px; top:0px;}
.slot.position4x1.size6x1 {width:970px; height:35px; left:0px; top:820px;}
.grid {position:relative; width:970px; height:875px;}
@media (min-width:660px) and (max-width:989px) 
{
 .slot.position1x1.size6x3 {width:640px; height:470px; left:0px; top:0px;}
.slot.position4x1.size6x1 {width:640px; height:35px; left:0px; top:655px;}
.grid {position:relative; width:640px; height:710px;} 
}
@media (max-width:659px) 
{
 .slot.position1x1.size6x3 {width:310px; height:470px; left:0px; top:0px;}
.slot.position4x1.size6x1 {width:310px; height:35px; left:0px; top:490px;}
.grid {position:relative; width:310px; height:545px;} 
}