* {
    margin: 0;
    padding: 0;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, "Noto Sans", sans-serif;
}

#content {
    top: 50%;
    left: 50%;
    width: 100%;
    max-width: 500px;
    position: absolute;
    transform: translate(-50%, -50%);
}

.color-palette {
    width: 100%;
    max-width: 500px;
}

.single-color {
    width: 20%;
    float: left;
    text-align: center;
    display: inline-block;
}

.single-color div {
    padding-top: 50%;
    margin-top: 50px;
    margin-bottom: 2px;
}