.right_img_box{width:300px;height:250px;border:1pxsolid#c9c9c9;margin-bottom:15px;background:#fff;padding:7px;}.right_aimg{width:300px;height:210px;} 使用pad...

把正面的类应用到外层div即可：.clearfix:after{content:".";display:block;height:0;clear:both;visibility:hidden;} ...