span.TopBorders, span.TopBorders span, span.BottomBorders, span.BottomBorders span{display:block; height:6px; font-size:1px; background:url("/img/bg/round_corners.png") no-repeat}
span.TopBorders span{background-position:100% -6px}
span.BottomBorders{background-position:0 -12px}
span.BottomBorders span{background-position:100% -18px}