*{box-sizing:border-box}body{font-family:Verdana,Geneva,Tahoma,sans-serif;background-color:#4fa;margin:0}header{padding:2rem}h1{display:block;text-align:center}section.menu{padding:2rem;margin:0 auto 200px;border:2px solid #0077ee;width:60%;min-width:200px;max-width:400px;background-color:#05d}.level{margin:1rem 0;padding:1rem;background-color:#036;color:#fff;text-align:center}footer{background-color:#036;padding:3rem 0 2rem;color:#fff}.credit{display:flex;flex-wrap:wrap;justify-content:center}