classless.css/aria.css at main · u1ui/classless.css · GitHub

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/* [aria-label] as tooltip */
[aria-label]::before {
  content:attr(aria-label);
  position:absolute;
  transform:translate(-1rem, -130%);
  display:none;
  border-radius:3px;
  padding:.2rem .5rem;
  filter: drop-shadow(0 0 .2em #0008);
  background-color:#000;
  color:#fff;
  font-size:.7rem;
  pointer-events:none;

  /* add arrow */
  border-width:0 0 .7rem 0;
  border-color:transparent;
  border-style:solid;
  background-color: transparent;
  background-image:
    linear-gradient(#000,#000),
    url('data:image/svg+xml;utf8,<svg xmlns="http://www.w3.org/2000/svg"><path d="M12 21L0 3h24z"/></svg>');
  background-repeat: no-repeat, no-repeat;
  background-origin: padding-box, border-box;
  background-size: 100%, auto 1rem;
  background-position: 0 0, bottom 0 left .8rem;
  transform:translate(-1rem, -100%);
  /**/
}

[aria-label]:focus::before, [aria-label]:hover::before {
  display:block;
}
label[aria-label]:focus-within::before {
  display:block;
}


/* more */
[aria-controls] {
  cursor: pointer;
}
[aria-busy=true] {
  cursor: progress;
}


nav a[aria-current] { color:var(--color); } /* parent pages */
nav a[aria-current=page] { font-weight:bold; } /* current page */

/*
sticky footer plugin
main {
  background-color:var(--color-bg);
}
[role=contentinfo] {
  position:sticky;
  z-index:-1;
  bottom:0;
  left:0;
  right:0;
}
*/