header {background-color: #fff; width: 100%; height: 200px;}
nav {background-color: #fff; width: 100%; height: 50px;}
section {background-color: #fff; width: 100%;}
.circle {width: 300px; height: 300px; border-radius: 100%; border: 2px dotted #ccc; margin: auto;}
address {text-align: center; border-top: 2px solid #ccc; padding: 10px;}