A responsive header with a grid layout using template 'repeat(3, 1fr)', containing items with small text and :hover { background-color: #555; color: white; }.
<header style='display: grid; grid-template-columns: repeat(3, 1fr); gap: 10px; :hover { background-color: #555; color: white; }'><li style='color: white; border: 1px dashed gray;'>Search</li><li style='color: yellow; border: 1px ridge orange;'>Enter Your Name</li><li style='color: purple; border: 1px ridge red;'>Submit</li><li style='color: white; border: 1px dotted blue;'>Sign Up</li><li style='color: purple; border: 1px double orange;'>Enter Your Name</li></header> @keyframes spin { from { transform: rotate(0deg); } to { transform: rotate(360deg); } }