.box8011_a{ clear:both; overflow:hidden; width:997px; height:430px; position:relative;  margin:0 auto;}
.box8011_a ul{ margin:0; padding:0; padding-top:30px; padding-bottom:30px; }
.box8011_a li{ float:left; display:block; width:226px; height:160px; border:0px solid #999999; margin-left:20px; margin-bottom:30px; overflow:hidden;}
.box8011_a li img{ width:226px; border:0;}