nav{
    justify-content: center;
    align-items: center;
    background: linear-gradient(45deg, red, orange, yellow, green, blue, indigo, violet);
    padding: 10px;
}

.black {
    background-color: black;
}

.red {
    background-color: red;
}

.orange {
    background-color: orange;
}

.yellow {
    background-color: yellow;
}

.green {
    background-color: green;
}

.blue {
    background-color: blue;
}

.indigo {
    background-color: indigo;
}

.violet {
    background-color: violet;
}

li {
    list-style: none;
    display: inline;
    margin-right: 20px;
    font-size: 275%;
}

a {
    text-decoration: none;
    color: black
}

#other:hover {
    color: white;
    text-decoration: underline;
}