iframe {
    border: 0;

    /* if user not editing page */
    &:last-child,
    /* if user is editing page */
    html.cms-ready &:has(~ script[data-cms]:last-child) {
        margin-bottom: var(--global-space--section-gap);
    }

    /* To horizontally center any iframe with a width less than 100% */
    margin-inline: auto;
    display: block;
}