.left   { background: url(../_gfx/brd_strategies_left.gif) repeat-y left top }
.right   { background: url(../_gfx/brd_strategies_right.gif) repeat-y right top }
.btm   { background: url(../_gfx/brd_strategies_btm.gif) no-repeat center bottom }
.top   { background: url(../_gfx/brd_strategies_top.gif) no-repeat center top }