.bl {background: url(images/BottomL.gif) 0 100% no-repeat #181818; width: 97%} 
.br {background: url(images/BottomR.gif) 100% 100% no-repeat} 
.tl {background: url(images/TopL.gif) 0 0 no-repeat} 
.tr {background: url(images/TopR.gif) 100% 0 no-repeat; padding:10px} 
.clear {font-size: 1px; height: 1px}