#show_message{visibility:hidden;min-width:250px;margin-left:-125px;color:#fff;text-align:center;border-radius:2px;padding:16px;position:fixed;z-index:1;left:50%;font-size:17px}#show_message.show{visibility:visible;-webkit-animation:fadein .7s,fadeout .7s 2.5s;animation:fadein .7s,fadeout .7s 2.5s}@-webkit-keyframes fadein{from{opacity:0}to{opacity:1}}@keyframes fadein{from{opacity:0}to{opacity:1}}@-webkit-keyframes fadeout{from{opacity:1}to{opacity:0}}@keyframes fadeout{from{opacity:1}to{opacity:0}}