margin: 0; text-align: center; } h1 { color: #ff0000; font-size: 3rem; text-shadow: 0 0 10px #ff0000; margin-bottom: 10px; font-weight: 900; } .btn { background-color: #ff0000; color: white; padding: 15px 40px; text-decoration: none; font-size: 1.5rem; border-radius: 8px; font-weight: bold; margin-top: 30px; box-shadow: 0 0 20px #ff0000; border: 2px solid #ff0000; }