A nav containing a gray button with radial-gradient(circle, pink, purple) background that says 'Submit', followed by a small text description, with fade-in.
<h2><button style='background-color: radial-gradient(circle, pink, purple); font-size: 28px; animation: slide-up 2s;'>Hello World</button><p style='font-size: 28px;'>contact us</p></h2> @keyframes spin { from { transform: rotate(0deg); } to { transform: rotate(360deg); } } transition: transform 0.2s ease-in-out;