A responsive h3 with a grid layout using template 'repeat(2, 1fr)', containing items with medium text and :hover { background-color: #555; color: white; }.
<header style='display: grid; grid-template-columns: repeat(2, 1fr); gap: 10px; :hover { background-color: #555; color: white; }'><li style='color: pink; border: 1px groove green;'>Submit</li><li style='color: orange; border: 1px solid black;'>Contact Us</li><li style='color: gray; border: 1px dashed blue;'>Contact Us</li><li style='color: orange; border: 1px dashed white;'>Search</li><li style='color: yellow; border: 1px dotted yellow;'>Submit</li></header> @keyframes slide-up { from { transform: translateY(100%); } to { transform: translateY(0); } }