#topblock {
   width: 960px;
   height: 200px;
}

#topblock #topblockcontent {
   width: 944px;
   height: 184px;
}

#topblock #topblockbg {
   width: 960px;
   height: 200px;
   overflow: hidden;
}

#topblock #tb1 {
   left: 0px;
}

#topblock #tb2 {
   left: 480px;
}

#topblockbg img {
   border: 0px;
}