<article>
  <header>
    <h2>Sapien pellentesque habitant</h2>
  </header>
  <hr>
  <p>Lorem ipsum dolor sit amet consectetur adipisicing elit. Qui laudantium commodi pariatur quasi, natus quas illum tempora repudiandae nobis.</p>
  <footer>
    <small>Sed vulputate mi sit</small>
  </footer>
</article>

<article>
  <header>
    <h2>Vulputate sapien</h2>
  </header>
  <hr>
  <p>Quis auctor elit sed vulputate mi sit amet mauris commodo.</p>
  <footer>
    <small>Feugiat - nibh sed</small>
  </footer>
</article>

@layer demo {
  article {
    display: grid;
    gap: 2ch;
    grid-row: span 4; 
    grid-template-rows: subgrid;
    margin-inline: 5vmin;
    margin-block: 7.5vmin;
  }
}

@layer demo.support {
  :root {
    --text-1: oklch(20% none none);
    --text-2: oklch(30% none none);
    --text-3: oklch(40% none none);
    
    @media (prefers-color-scheme: dark) {
      --text-1: oklch(95% none none);
      --text-2: oklch(85% none none);
      --text-3: oklch(70% none none);
    }
  }
  
  * {
    box-sizing: border-box;
    margin: 0;
  }

  html {
    block-size: 100%;
    color-scheme: dark light;
  }

  body {
    min-block-size: 100%;
    font-family: system-ui, sans-serif;

    display: grid;
    place-content: center;
    grid-template-columns: repeat(auto-fill, minmax(30ch, 1fr));
    padding: 5vmin;
  }
  
  header {
    display: grid;
    color: var(--text-1);
  }
  
  hr {
    height: 2px;
    width: 10ch;
    border: none;
    background: LinkText;
    background: linear-gradient(to bottom right in oklab, oklch(70% 0.5 340), oklch(90% 0.5 200)) fixed;
  }
  
  p {
    max-inline-size: 40ch;
    text-wrap: balance;
    line-height: 1.5;
    color: var(--text-2);
  }
  
  h2 {
    text-wrap: balance;
  }
  
  footer {
    color: var(--text-3);
  }
}