Row and Stack layouts are WordPress’s implementation of CSS flexbox, providing horizontal and vertical arrangement options with intelligent responsive behavior.
Row layout arranges blocks horizontally with block gap controlling spacing between items. Enable “allow to wrap to multiple lines” for responsive behavior – without this, content squeezes uncomfortably on smaller screens.
Stack layout arranges blocks vertically (though this is also the default flow behavior). Both row and stack provide alignment options: left, center, right alignment, plus distribution options like space-between.
These flexbox implementations handle responsive design automatically when wrapping is enabled, making them ideal for navigation, button groups, card layouts, and other common web design patterns.