.wp-block-post-navigation-link { border-top: 1px solid; display: flex; padding-top: 1em; } .post-navigation-link-next { flex-direction: row-reverse; a { margin-right: 0.5em; } } .post-navigation-link-previous { a { margin-left: 0.5em; } } .next-prev-links { .wp-block-column, .wp-block-column:not(:only-child) { flex-basis: 40% !important; // This is needed to override the collapsing columns in Gutenberg &:not(:first-child) { margin-left: 20%; } } }