@charset "utf-8";
/* CSS Document */
body {
    width:800px;
    margin:0 auto;
    font-family:'Arial', sans-serif;
    line-height:1.5
    }

nav {
    font-size: 14px;
    }

nav ul {
    list-style-type: none;
    margin: 0;
    padding: 0;
    background-color: gray;
    overflow:auto;
    }

nav ul li {
    float: left;
    }

nav ul li a {
    display: block;
    color: white;
    text-align: center;
    padding: 14px 16px;
    text-decoration: none;
    }