.bl {background: url(img/bl.gif) 0 100% no-repeat #1977AA; width: 557px}
.br {background: url(img/br.gif) 100% 100% no-repeat}
.tl {background: url(img/tl.gif) 0 0 no-repeat}
.tr {background: url(img/tr.gif) 100% 0 no-repeat; padding:10px}
.clear {font-size: 1px; height: 1px}