body{font-family:system-ui,sans-serif}nav{height:50px;position:fixed;background-color:#fff;width:100%;padding:5px 0;filter:drop-shadow(3px 3px 3px #000000);bottom:0;left:0}nav ul{text-align:center}nav ul li{display:inline-block;padding:20px}nav ul li a{text-decoration:none;color:inherit}@media(max-width: 800px){body{padding:0}nav{position:relative;height:auto}nav ul{width:100%;padding:0;text-align:center}nav ul li{display:block;padding:20px 0}nav ul li a{text-decoration:none;color:inherit}}