body{font-family:sans-serif}body,h1,h2,h3,h4,h5,h6,li,p,ul{margin:0;padding:0}nav ul{list-style-type:none;padding:10px;background-color:#f0f0f0}nav ul li{display:inline;margin-right:15px}footer{padding:10px;text-align:center;background-color:#f0f0f0;margin-top:20px}