html,body{height:100%;margin:0}.test{text-align:center;margin-top:60px}.test button{width:200px;height:40px;margin:5px 0}#mask_layer{background-color:#000;-ms-filter:"alpha(opacity=50)";filter:alpha(opacity=50);-moz-opacity:.1;-khtml-opacity:.1;opacity:.1;z-index:1000;position:fixed;_position:absolute;top:0;left:0;width:100%;height:100%}#scs_alert{position:fixed;_position:absolute;z-index:1001;top:50%;left:50%;margin-left:-144px;margin-top:-76px;text-align:left;width:289px}#alert_top{height:20px;background:url(../image/scs_alert.png) no-repeat 0 -73px}#alert_bg{background:url(../image/scs_bg.png) repeat-y -1px 0;text-align:center;*+height:1%}#alert_bg:after{content:".";display:block;height:0;clear:both;visibility:hidden}#alert_foot{height:13px;background:url(../image/scs_alert.png) no-repeat 0 -93px}#confirm_ok,#confirm_cancel,#alert_ok{width:89px;height:32px;display:block;float:left;text-align:center;overflow:hidden;text-decoration:none;line-height:30px;margin:5px 10px 5px 0;background:url(../image/scs_alert.png) no-repeat 0 -39px;color:#fff;font-family:微软雅黑,宋体;font-size:16px}#confirm_ok{margin-left:47px;_margin-left:25px}#alert_ok{margin-left:97px;_margin-left:50px}#confirm_ok:hover,#confirm_cancel:hover,#alert_ok:hover{background-position:-89px -39px}#confirm_ok:active,#confirm_cancel:active,#alert_ok:active{background-position:-178px -39px}#inco_ok,#inco_warn,#inco_error,#inco_confirm{width:37px;height:37px;background:url(../image/scs_alert.png) no-repeat 0 0}#inco_error{background-position:-41px 0}#inco_warn{background-position:-82px 0}#inco_confirm{background-position:-123px 0}#alert_txt{text-align:left;color:#444;font-family:微软雅黑,宋体;font-size:16px}