Utilities
These l-ui-* utilities are thin pass-throughs to the equivalent Tailwind classes. They exist because the gem's engine CSS is compiled separately from the host application, so plain Tailwind utilities referenced only inside engine views are not detected by the host's Tailwind build and would not be emitted. Host application code (including the dummy app's documentation pages) can use plain Tailwind utilities directly; the l-ui-* versions are only required inside the engine itself.
Top margin
l-ui-mt-0
l-ui-mt-2
l-ui-mt-3
l-ui-mt-4
l-ui-mt-6
l-ui-mt-8
l-ui-mb-0