body {
    margin: auto;
    font-family: Arial, Helvetica, sans-serif;
}

.nav ul {
    list-style-type: none;
    padding: 0;
    margin: 0;
    /* background-color: #444; */
}

.nav li {
    display: inline;
    line-height: 40px;
    height: 40px;
}

.nav a {
    display: inline-block;
    text-decoration: none;
    text-align: center;
    color: #000000
}

.nav a:hover {
    border-bottom: 2px solid;
}

.nav .active a {
    border-bottom: 2px solid;
    cursor: default;
}

@media screen and (min-width: 800px) {
    body {
	width: 800px;
    }
}