.tl_com { background: url("../images/round_colors/com_01.gif") no-repeat left top; }
.tr_com { background: url("../images/round_colors/com_02.gif") no-repeat right top; }
.bl_com { background: url("../images/round_colors/com_03.gif") no-repeat left bottom; background-color: #971b2f; }
.br_com { background: url("../images/round_colors/com_04.gif") no-repeat right bottom; }

.sub_com, .full_com { background-color: #971b2f; }