/* remove column gaps on mobile and margin bottom on lists */
@media(max-width: 780px) {
    .wp-block-columns {
        gap: unset;
    }
    .wp-block-columns .wp-block-column ul {
        margin-bottom: 0px;
    }
}

/* add margin for last list in columns */
.wp-block-columns  .wp-block-column:last-child ul:last-child {
    margin-bottom: 1rem;
}