1) put this right before you close the main div:
2) add this css:

#main{
min-height:86%;
max-height:86%;
height:auto;
}

#push{
height:[height];
clear:booth;
}



TIP: REPLACE [] WITH STANDARD HYPERTEXT PROTOCOL.
TIP: REPLACE WHATEVER IS BETWEEN THE [] WITH YOUR INFORMATION.



Hope that helps!