nav {
    width: 60%;
    height: 40px;
    margin-left: 20%;
    background-color: #151515;
    border-top-right-radius: 25px;
    border-bottom-right-radius: 4px;
    border-top-left-radius: 4px;
    border-bottom-left-radius: 4px;
}
nav li {
    float: left;
    list-style: none;
    margin-left: 10px;
    margin-right: 10px;
    background-color: #151515;
}
nav li, a {
    text-decoration: none;
    color: #808080;
    padding-top: 10px;
    padding-left: 6px;
}
nav li a:hover {
    text-decoration: underline;
    color: white;
}