*{box-sizing:border-box;margin:0;padding:0}.canvas{position:relative;width:100vw;height:100vw}canvas{background:#000}.hide{display:none}.overlay button.xr-exit{font-size:.9rem;padding:.65rem 1rem;color:#fff;opacity:.5;border:1px solid #fff;border-radius:4px;text-transform:uppercase;background:0 0;position:absolute;bottom:2.2rem;left:0;right:0;display:block;margin:0 auto}