.t {background: #e6f3f7 url(../images/dot.gif) 0 0 repeat-x; width: 20em}
.b {background: url(../images/dot.gif) 0 100% repeat-x}
.l {background: url(../images/dot.gif) 0 0 repeat-y}
.r {background: url(../images/dot.gif) 100% 0 repeat-y}
.bl {background: url(../images/bl.gif) 0 100% no-repeat}
.br {background: url(../images/br.gif) 100% 100% no-repeat}
.tl {background: url(../images/tl.gif) 0 0 no-repeat}
.tr {background: url(../images/tr.gif) 100% 0 no-repeat; padding:10px}