.part {
    text-decoration: underline dotted;
    text-underline-offset: 2px;
    position: relative;
    display: inline;
    cursor: help;
    background-color: #fff;

    & span {
        display: block;
    }

    & > span {
        display: none;
        position: absolute;
        left: 0;
        width: 100%;
        top: 100%;
        margin: 4px;
        border: 1px solid currentColor;
        padding: 8px;
        background-color: inherit;
    }

    & > span > span:nth-child(2n - 1) {
        font-weight: 600;
    }

    & > span > span:nth-child(2n) {
        margin-left: 1rem;
    }

    &:hover > span,
    &:focus > span,
    & > span:hover {
        display: block;
    }

    @media (prefers-color-scheme: dark) {
        background-color: #000;
    }
}