*{padding:0;margin:0}#app{max-width:750px;width:100%;margin:0 auto;height:auto}body,html{height:auto;min-height:100%}.l_sticky{left:0;right:0;max-width:750px;margin:auto}.no-select{-webkit-user-select:none;-moz-user-select:none;user-select:none}