html,body,#app{width:100%;height:100%;margin:0}body{overflow:hidden;background:#000 url(/assets/images/BG_H5_PC.png) center center / cover no-repeat;color:#fff;font-family:Arial,Helvetica,sans-serif}button,input,textarea{font:inherit}.app-shell{position:fixed;top:0;right:0;bottom:0;left:0;display:flex;align-items:center;justify-content:center;background:transparent}.game-host{width:100%;height:100%}