body,html{padding:0;margin:0;overflow:hidden;background:#eee;}canvas,span{position:absolute;left:40%;right:initial;top:0;bottom:0;margin:auto}#m,#i{left:10%;right:initial;box-shadow:0px 0px 10px black inset}#m{background:#DDD}span{left:75%;right:initial;top:calc(50% - 125px);user-select:none;cursor:default}