HTML Code

<!DOCTYPE html>

<html lang=en>

<head>

  <meta charset=UTF-8>

  <meta name=viewport content="width=device-width,initial-scale=1">

  <title>muted — dynamic JS</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 .75rem;font-size:1.25rem;color:#0f172a}video{max-width:100%;border-radius:8px;border:1px solid #e2e8f0;margin-bottom:.75rem}.btns{display:flex;gap:.5rem;flex-wrap:wrap}button{padding:.5rem 1rem;font:inherit;cursor:pointer;border-radius:6px;border:1px solid #cbd5e1;background:#fff}button.is-active{background:#2563eb;color:#fff;border-color:#1d4ed8}.status{margin-top:.75rem;font-size:.8125rem;color:#64748b;max-width:420px}code{background:#e2e8f0;padding:.1rem .35rem;border-radius:4px}</style>

</head>

<body>

  <h1>element.muted in JavaScript</h1>

  <video id=demo controls playsinline width=360 src=https://interactive-examples.mdn.mozilla.net/media/cc0-videos/flower.webm></video>

  <div class=btns>

    <button type=button id=muteBtn>video.muted = true</button>

    <button type=button id=unmuteBtn class=is-active>video.muted = false</button>

  </div>

  <p class=status id=status>Current state: unmuted (audio on if you press play)</p>



  <script>var demo=document.getElementById("demo"),status=document.getElementById("status");document.getElementById("muteBtn").addEventListener("click",(function(){demo.muted=!0,status.textContent="video.muted set to true — audio silenced."})),document.getElementById("unmuteBtn").addEventListener("click",(function(){demo.muted=!1,status.textContent="video.muted set to false — audio enabled."}))</script>

</body>

</html>

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HTML muted Attribute — Toggle muted with JavaScript