HTML Code

<!DOCTYPE html>

<html lang=en>

<head>

  <meta charset=UTF-8>

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

  <title>onplaying — spinner demo</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}#spinner{display:inline-block;padding:.5rem .75rem;background:#fef3c7;border:1px solid #fde68a;border-radius:8px;font-size:.875rem;color:#92400e;margin-bottom:.75rem}#spinner[hidden]{display:none}#status{padding:.75rem 1rem;background:#eff6ff;border:1px solid #bfdbfe;border-radius:8px;font-size:.875rem;max-width:420px}</style>

</head>

<body>

  <h1>waiting + playing</h1>

  <p>Spinner shows while buffering, hides when playing.</p>

  <div id=spinner hidden>Loading…</div>

  <audio controls id=audio>

    <source src=/audio/count.mp3 type=audio/mpeg>

  </audio>

  <div id=status>Ready</div>



  <script>var audio=document.getElementById("audio"),spinner=document.getElementById("spinner"),status=document.getElementById("status");audio.addEventListener("waiting",(function(){spinner.hidden=!1,status.textContent="Buffering…",status.style.background="#fef3c7",status.style.borderColor="#fde68a"})),audio.addEventListener("playing",(function(){spinner.hidden=!0,status.textContent="Playing",status.style.background="#f0fdf4",status.style.borderColor="#bbf7d0"})),audio.addEventListener("pause",(function(){status.textContent="Paused",status.style.background="#f1f5f9",status.style.borderColor="#e2e8f0"}))</script>

</body>

</html>

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HTML onplaying Attribute — Buffering spinner