.skip{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;
  clip:rect(0 0 0 0);white-space:nowrap;border:0}
.skip:focus{position:fixed;top:8px;left:8px;width:auto;height:auto;clip:auto;
  padding:10px 16px;background:#000;color:#fff;z-index:999}
*:focus-visible{outline:2px solid currentColor;outline-offset:2px}
[hidden]{display:none!important}