nav {
    background-color: green;
    overflow: auto;
    border-radius: 10px;
    border-style: outset;
    white-space: nowrap;
}

nav a {
    display: inline-block;
    color: #f2f2f2;
    text-align: center;
    padding: 14px 16px;
    text-decoration:none;
    font-weight: bold;
    font-size: 2vw;
}

nav a:hover {
    background-color: lightblue;
    color: black;
}