.page_Banner{ width:100%; margin:0 auto; text-align:left; min-width:1190px; max-width:1920px; height:600px; overflow:hidden;}
.main_image {width:100%; height:600px; overflow:hidden; margin:0 auto; position:relative}
.main_image ul {width:9999px; height:600px; overflow:hidden; position:absolute; top:0; left:0}
.main_image li {float:left; width:100%; height:600px;}
.main_image li span {display:block; width:100%; height:600px}
.main_image li a {display:block; width:100%; height:600px}



#btn_prev,#btn_next{z-index:11111;position:absolute;width:40px!important;height:40px!important;top:247px; display:block;}
#btn_prev{ background:url(../image/prevArrow.png) no-repeat; left:10%}
#btn_next{ background:url(../image/nextArrow.png) no-repeat; right:10%}