A responsive header with a grid layout using template 'repeat(2, 1fr)', containing items with small text and :hover { background-color: #555; color: white; }.
<h3 style='display: grid; grid-template-columns: 1fr 2fr; gap: 10px; :hover { box-shadow: 0 0 10px rgba(0, 0, 0, 0.5); }'><li style='color: cyan; border: 1px solid gray;'>Choose Option</li><li style='color: white; border: 1px dotted white;'>Choose Option</li><li style='color: black; border: 1px dashed cyan;'>Login</li><li style='color: black; border: 1px groove pink;'>Submit</li><li style='color: orange; border: 1px dashed red;'>Hello World</li></h3> @keyframes spin { from { transform: rotate(0deg); } to { transform: rotate(360deg); } }