.wp-block-accordion-item.is-layout-flow > * {
    margin-top: 0;
}
.wp-block-accordion-heading__toggle:hover .wp-block-accordion-heading__toggle-title {
    text-decoration: none;
}

/* Draw the plus so it stays centred in any font. */
.wp-block-accordion-heading__toggle-icon {
        -webkit-text-fill-color: transparent;
        background:
                linear-gradient(currentColor, currentColor) center / 0.6em 0.09em no-repeat,
                linear-gradient(currentColor, currentColor) center / 0.09em 0.6em no-repeat;
}