nav:not(.mm-menu){display:none;}
.header{text-align:center;}
.header, .footer{}
.header.fixed{position:fixed;top:0;left:0;}
.footer.fixed{position:fixed;bottom:0;left:0;}
.header a.menu_m{background:left center no-repeat transparent;background-image:url(data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAABkAAAAZCAYAAADE6YVjAAAAGXRFWHRTb2Z0d2FyZQBBZG9iZSBJbWFnZVJlYWR5ccllPAAAADhJREFUeNpi/P//PwOtARMDHQBdLGFBYtMq3BiHT3DRPU4YR4NrNAmPJuHRJDyahEeT8Ii3BCDAAF0WBj5Er5idAAAAAElFTkSuQmCC);display:block;float:left;color:#fff;text-align:left;white-space:nowrap;}
.sh_related > ul{list-style:none}
#chieucao span{font-size:14px;}