< type="text/css"> ul,li{ padding:0; margin:0; list-:none;} #flashBoxu_u3_{ width:1920px; height:470px; border:0px solid #EEE; position:relative; margin-left: auto; margin-right: auto;} #flashBoxu_u3_ img{ /*初始不要显示*/ display:none; /*用边框来实现空位，因为margin和paading有时会引起些麻烦*/ border:0px solid #FFF;} #flashBoxu_u3_ ul{ display:none; position:absolute; right:7px; bottom:3px; font:9px tahoma;} #flashBoxu_u3_ ul li{ display:none; float:left; width:12px; height:12px; line-height:12px; margin-right:3px; border:0px solid #999; background:#F0F0F0; text-align:center; cursor:pointer;} #flashBoxu_u3_ ul li.hover{ border-color:red; background:#FFE1E1; color:red;}