CSS <absolute-size> Data Type - Playground Example

<!DOCTYPE html><html><head><style type="text/css">/* Demonstration of the <absolute-size> keywords */
body {
  font-family: system-ui, -apple-system, 'Segoe UI', Roboto, sans-serif;
  margin: 2rem;
  font-size: 16px; /* base reference size */
  line-height: 1.4;
  color: #111827;
  background: #ffffff;
}

.example {
  max-width: 60rem;
}

.example h1 {
  font-size: 1.25rem;
  margin-bottom: 1rem;
}

.example p {
  margin: 0.25rem 0;
  padding: 0.4rem 0.6rem;
  border-radius: 6px;
  background: #f3f4f6;
  display: inline-block;
}

.example p.xx-small { font-size: xx-small; }
.example p.x-small  { font-size: x-small; }
.example p.small    { font-size: small; }
.example p.medium   { font-size: medium; }
.example p.large    { font-size: large; }
.example p.x-large  { font-size: x-large; }
.example p.xx-large { font-size: xx-large; }</style></head><body><section class='example'>
    <h1>Absolute-size keywords</h1>
    <p class='xx-small'>xx-small  -  font-size: xx-small;</p>
    <p class='x-small'>x-small  -  font-size: x-small;</p>
    <p class='small'>small  -  font-size: small;</p>
    <p class='medium'>medium  -  font-size: medium;</p>
    <p class='large'>large  -  font-size: large;</p>
    <p class='x-large'>x-large  -  font-size: x-large;</p>
    <p class='xx-large'>xx-large  -  font-size: xx-large;</p>
  </section></body></html>