A textarea containing a gray button with radial-gradient(circle, pink, purple) background that says 'Hello World', followed by a medium text description, with spin.
<header><button style='background-color: radial-gradient(circle, pink, purple); font-size: 28px; animation: bounce 2s;'>Login</button><p style='font-size: 28px;'>click me</p></header> @keyframes bounce { 0%, 20%, 50%, 80%, 100% { transform: translateY(0); } 40% { transform: translateY(-30px); } 60% { transform: translateY(-15px); } } transition: all 0.3s ease;