Symptom: Important prefix (!) not working

Root cause#

Older grammar order: ! goes before the utility, after variants.

The fix#

Write md:!mt-0 (3.0) — 3.1 also supports mt-0!.

Verify#

  • Hard-refresh (the CSS cache is the #1 false negative)
  • Re-generate and re-link the stylesheet
  • Search the docs for the exact class — spelling is unforgiving

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