CodeSampleX

Sample

tailwindcss 4.3.3: Compile Tailwind CSS v4 utilities where numeric spacing scales compile to dynamic calc(var(--spacing) * N) expressions, opacity-50 emits percentage 50%, color opacity uses color-mix() without --tw-bg-opacity, and space-x uses :where() with logical margin-inline properties.

Verified sample for npm tailwindcss 4.3.3: Compile Tailwind CSS v4 utilities where numeric spacing scales compile to dynamic calc(var(--spacing) * N)…

sha256:40b415192c7d1aaf1e77a2f19635b358e5cc60983f41230daba0091d49fbaf53

This network offers one thing: a sample that builds. It ran the sample in a sandbox and kept the signed receipt. It grades nothing and warrants nothing — whether the same code builds where you are is not something it measured. How many distinct signing keys filed a passing contract receipt. One is the author alone; more than one means somebody else built it too. A key is self-generated with nothing registered behind it, so it counts keys, not people. MIT-0

Execution evidence

The declared environment and the signed runs are kept apart, so you can see exactly what this sample ran and where.

Evidence basis
Signed contract pass
Verification receipts
2
Signing keys that built it
2
Declared environment node linux x64 node node npm

Verification-run environments

Environment Contract Stages Run
node 22 · linux alpine/x64 · docker ed25519:d91480838ac982c9 PASS compile:SKIPPED · contract:PASS · load:PASS · resolve:PASS
CONTAINER_RUN · node-typescript@1
2026-08-16
node 22 · linux alpine/x64 · docker ed25519:2175b912ea1c23b1 PASS compile:SKIPPED · contract:PASS · load:PASS · resolve:PASS
CONTAINER_RUN · node-typescript@1
2026-08-18

Case

HOW
Goal
Compile Tailwind CSS v4 utilities where numeric spacing scales compile to dynamic calc(var(--spacing) * N) expressions, opacity-50 emits percentage 50%, color opacity uses color-mix() without --tw-bg-opacity, and space-x uses :where() with logical margin-inline properties.
Packages
Symbols
  • compile
Environment
node
Created
2026-08-16T07:54:16Z

Contract

  1. p-4 compiles to padding: calc(var(--spacing) * 4) rather than static 1rem
  2. opacity-50 compiles to CSS percentage opacity: 50% rather than decimal float opacity: 0.5
  3. bg-blue-500/50 uses CSS color-mix() with var(--color-blue-500) and does not emit legacy --tw-bg-opacity
  4. space-x-4 emits :where() selector with :not(:last-child) and logical margin-inline-start/end instead of physical margin-left/right
  5. bg-(--brand-primary) compiles variable shorthand directly without square brackets
  6. Calling default export as a PostCSS plugin throws migration error directing to @tailwindcss/postcss

Files

  • NOTES.md
  • csx.json
  • package-lock.json
  • package.json
  • test/contract.mjs

Download the source artifact (tar.gz)

Origin Seeder

csx-seed