HTML Code

<!DOCTYPE html>
<html lang=en>
<head>
  <meta charset=UTF-8>
  <meta name=viewport content="width=device-width,initial-scale=1">
  <title>Responsive Picture</title>
  <style>body{font-family:system-ui,sans-serif;margin:0;padding:1.5rem;background:#f8fafc;color:#334155;line-height:1.7}h1{margin:0 0 1rem;font-size:1.25rem;color:#0f172a}picture{display:block;max-width:360px}img{display:block;width:100%;border-radius:8px;border:1px solid #cbd5e1}.hint{margin-top:1rem;font-size:.8125rem;color:#64748b;max-width:360px}</style>
</head>
<body>
  <h1>Responsive images</h1>
  <picture>
    <source srcset="data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='360' height='220' viewBox='0 0 360 220'%3E%3Crect fill='%2322c55e' width='360' height='220'/%3E%3Ctext x='180' y='115' fill='white' font-family='system-ui,sans-serif' font-size='18' text-anchor='middle'%3ELarge (1200px+)%3C/text%3E%3C/svg%3E" media="(min-width: 1200px)">
    <source srcset="data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='360' height='220' viewBox='0 0 360 220'%3E%3Crect fill='%23f97316' width='360' height='220'/%3E%3Ctext x='180' y='115' fill='white' font-family='system-ui,sans-serif' font-size='18' text-anchor='middle'%3EMedium (768px+)%3C/text%3E%3C/svg%3E" media="(min-width: 768px)">
    <img src="data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='360' height='220' viewBox='0 0 360 220'%3E%3Crect fill='%23ef4444' width='360' height='220'/%3E%3Ctext x='180' y='115' fill='white' font-family='system-ui,sans-serif' font-size='18' text-anchor='middle'%3ESmall (fallback)%3C/text%3E%3C/svg%3E" alt="Responsive demo image that changes by viewport width">
  </picture>
  <p class=hint>Resize the browser window to see a different colored image at each breakpoint.</p>
</body>
</html>

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HTML picture Tag — Responsive Images