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<html><head><meta name="viewport" content="width=device-width, initial-scale=1"><style>body { font-family: Arial, Helvetica, sans-serif;}.notification { background-color: #555; color: white; text-decoration: none; padding: 15px 26px; position: relative; display: inline-block; border-radius: 2px;}.notification:hover { background: red;}.notification .badge { position: absolute; top: -10px; right: -10px; padding: 5px 10px; border-radius: 50%; background-color: red; color: white;}</style></head><body><h1>Notification Button</h1><a href="#" class="notification"> <span>Inbox</span> <span class="badge">3</span></a></body></html>