.boxs .t {background:url(../images/box/box_bg_t.gif) repeat-x left top;}
.boxs .r {background:url(../images/box/box_bg_r.gif) repeat-y top right;}
.boxs .b {background:url(../images/box/box_bg_b.gif) repeat-x right bottom;}
.boxs .l {background:url(../images/box/box_bg_l.gif) repeat-y left top;}
.boxs .tl {background:url(../images/box/box_bg_tl.gif) no-repeat left top;}
.boxs .tr {background:url(../images/box/box_bg_tr.gif) no-repeat right top;}
.boxs .br {background:url(../images/box/box_bg_br.gif) no-repeat bottom right;}
.boxs .bl {background:url(../images/box/box_bg_bl.gif) no-repeat bottom left;}