#mess_share img{width:22px;height:22px;vertical-align:top;border:0}
#mcover{position:fixed;top:0;left:0;width:100%;height:100%;background:rgba(0,0,0,.8);display:none;z-index:20000;transition:all .3s}
#mcover img{width:84.5%;z-index:20001;display:block;margin:0 auto;margin-top:45px}