Chrome-Style Extension Update Notification HTML

Code Solution:
<!DOCTYPE html>
<html lang="en">
<head>
  <meta charset="UTF-8">
  <title>Chrome-Style Notification</title>
  <style>
    /* Reset & base */
    *{box-sizing:border-box;margin:0;padding:0}
    body{
      font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,"Helvetica Neue",Arial,sans-serif;
      background:#f1f3f4;
      display:flex;
      align-items:center;
      justify-content:center;
      height:100vh;
    }

    /* Notification card */
    .notification{
      width:360px;
      background:#fff;
      border-radius:8px;
      box-shadow:0 4px 12px rgba(0,0,0,.15);
      overflow:hidden;
      animation:slideIn .35s ease-out;
    }
    @keyframes slideIn{
      from{transform:translateY(-20px);opacity:0}
      to{transform:translateY(0);opacity:1}
    }

    /* Header */
    .header{
      display:flex;
      align-items:center;
      padding:12px 16px;
      border-bottom:1px solid #e8eaed;
    }
    .header img{
      width:20px;
      height:20px;
      margin-right:8px;
    }
    .header span{
      font-size:13px;
      color:#5f6368;
    }

    /* Body */
    .body{
      padding:16px;
    }
    .title{
      font-size:15px;
      font-weight:600;
      color:#202124;
      margin-bottom:4px;
    }
    .message{
      font-size:14px;
      color:#3c4043;
      line-height:1.4;
    }

    /* Footer actions */
    .actions{
      display:flex;
      justify-content:flex-end;
      padding:8px 16px 12px;
    }
    .btn{
      background:none;
      border:none;
      font-size:13px;
      color:#1a73e8;
      padding:6px 8px;
      margin-left:8px;
      cursor:pointer;
      border-radius:4px;
      transition:background .15s;
    }
    .btn:hover{background:#e8f0fe}
    .btn.primary{
      background:#1a73e8;
      color:#fff;
    }
    .btn.primary:hover{background:#1765cc}
  </style>
</head>
<body>

  <div class="notification" id="notification">
    <div class="header">
      <img src="data:image/svg+xml;base64,PHN2ZyB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciIHZpZXdCb3g9IjAgMCAyNCAyNCI+PHBhdGggZmlsbD0iIzQyODVmNCIgZD0iTTIxLjM1IDEwLjVIMTJWMy41YzAtLjU1LS40NS0xLTEtMXMtMSAuNDUtMSAxdjcuNUgzLjVjLS41NSAwLTEgLjQ1LTEgMXMuNDUgMSAxIDFIMTB2Ny41YzAgLjU1LjQ1IDEgMSAxczEtLjQ1IDEtMXYtNy41aDkuMzVjLjU1IDAgMS0uNDUgMS0xcy0uNDUtMS0xLTF6Ii8+PC9zdmc+" alt="icon">
      <span>chrome-extension://abc123</span>
    </div>
    <div class="body">
      <div class="title">Update available</div>
      <div class="message">A new version of this extension is ready. Restart Chrome to apply the update.</div>
    </div>
    <div class="actions">
      <button class="btn" onclick="closeNotification()">Not now</button>
      <button class="btn primary" onclick="restartChrome()">Restart</button>
    </div>
  </div>

  <script>
    function closeNotification(){
      const n=document.getElementById('notification');
      n.style.animation='slideIn .35s ease-out reverse';
      setTimeout(()=>n.remove(),350);
    }
    function restartChrome(){
      alert('Restarting Chrome… (demo only)');
      closeNotification();
    }
  </script>

</body>
</html>
Chrome-Style Extension Update Notification HTML

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