.weibo_ser_banner{position:relative;margin:10px 40px 20px 40px;}.weibo_ser_banner .close_btn_b{background:url(../../images/action/weibo/icon_close.png);display:inline-block;width:18px;height:18px;position:absolute;right:6px;top:5px;}.weibo_ser_banner .close_btn_b:hover{background-position:0 -18px;}#js_appstyle_searchV45_css_v6_action_weibo_ser{height:42px;}