A span containing a pink button with linear-gradient(to bottom, blue, green) background that says 'Contact Us', followed by a small text description, with bounce.
<header><button style='background-color: radial-gradient(circle, pink, purple); font-size: 22px; animation: fade-in 2s;'>Hello World</button><p style='font-size: 22px;'>submit</p></header> @keyframes slide-up { from { transform: translateY(100%); } to { transform: translateY(0); } } transition: all 0.3s ease;