ul li {
    transition: .3s;
    list-style-type: none;
    display: inline-block;
    font-family: "Julius Sans One", sans-serif;
    font-size: 10px;
    letter-spacing: 1px;
    background: #333;
    border: 1px solid #333;
    padding: 2px 3px;
    position: relative;
    z-index: 2;
}

ul li a {
    color: #FFF;
    border: none;
}

ul li:hover {
    background: #FFF;
}

ul li:hover a {
    color: #333;
}