A cyan button with medium Georgia text, using none layout, aligned to the center, with 4px 4px 10px rgba(0, 0, 0, 0.5), fade-in, and a :hover { background-color: #555; color: white; }.
<button style='background-color: green; font-size: 28px; font-family: Courier New; display: inline-block; text-align: justify; box-shadow: 0 4px 8px rgba(0, 0, 0, 0.2); animation: fade-in 2s; transition: background-color 0.4s ease; :hover { box-shadow: 0 0 10px rgba(0, 0, 0, 0.5); }'>Hello World</button> @keyframes spin { from { transform: rotate(0deg); } to { transform: rotate(360deg); } }