body {
  font-size: 1.414em;
  margin: 1em;
}
* {
  font-family: sans-serif;
  font-size: inherit;
  font-weight: normal;
  font-style: normal;
  margin: 0 0 .414em;
}

*::before {
  content: attr(data-tag);
}
abbr[title][data-tag-after]::after {
  content: ' abbreviation: 'attr(data-tag-after);
}
[data-tag-block]::before {
  content: attr(data-tag-block);
  display: block;
  margin: 0 0 .414em;
}

audio {
  display: block;
}

ul {
  margin: inherit;
  padding: 0;
  list-style: none;
}
svg {
  display: none;
}