clamp() CSS Function - Playground Example

<!DOCTYPE html><html><head><style type="text/css">h1 {
  font-family: sans-serif;
  color: #333;
  
  /* Minimum: 1.5rem 
     Preferred: 5vw (scales with window size)
     Maximum: 4rem 
  */
  font-size: clamp(1.5rem, 5vw, 4rem);
}

.container {
  width: 80%;
  margin: 0 auto;
  padding: 20px;
  border: 2px solid #ccc;
  
  /* You can also use clamp for widths! */
  /* Min 300px, Preferred 50%, Max 800px */
  width: clamp(300px, 50%, 800px);
}</style></head><body><div class="container">
    <h1>Responsive Heading</h1>
    <p>
      Resize your browser window width to see this text grow and 
      shrink fluently between its defined limits.
    </p>
  </div></body></html>