#sub_main_banner {overflow:hidden;width:91%;min-width:1070px;height:665px;margin:10px auto;background:url(/sh_img/hd/sub_main_banner/sub_main_banner.jpg) no-repeat 50% 50%;background-size:cover}
@keyframes sub_main{from{background-position:top center}50%{background-position:bottom center}100%{background-position:top center}}
#sub_main_banner.s_scroll {background-position:0 -100px !important}