.bottom{ width:100%; height:68px; background:url(../images/index_68.jpg) repeat-x;}
.bottom_box{ width:980px; height:auto; margin:1px auto;}
.bottom_box dt{ width:auto; height:auto; float:left; margin-right:16px; display:inline; margin-left:5px;}
.bottom_box dd{ width:auto; height:auto; float:left; margin-top:13px;}