CSS Grid Math
SkillDev toolsDerive and debug CSS Grid layout math for grid coordinates, line placement, spans, negative indexes, fr units, minmax(), fit-content(), repeat(), auto-fill, and auto-fit. Use when building grid systems, explaining track sizing, troubleshooting fr distribution, placing items by line numbers, or converting a layout sketch into CSS Grid formulas.
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Details
Instructions available. Your AI can read the instructions. Execution depends on the setup they require.
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What this skill tells your AI
The instructions your AI receives, as published by hashgraph-online/awesome-codex-plugins in plugins/LVTD-LLC/skills/skills/css-grid-math/SKILL.md and read by Ahel’s review.
Use this skill when a grid needs to be reasoned about as a coordinate and sizing system. It helps calculate where items land, how tracks divide space, and why flexible tracks do not always produce expected widths.
Quick Start
- Read
guidelines.mdto select the smallest relevant file set. - Load
references/grid-layout/rules.mdfor implementation decisions. - Load
references/grid-layout/examples.mdwhen editing code. - Use
workflows/debug-grid-layout.mdfor multi-step derivation or debugging.
Contents
| Resource | Purpose |
|---|---|
guidelines.md | Routes tasks to the right reference files |
references/source-map.md | Book source and chapter/section traceability |
references/grid-layout/knowledge.md | Core concepts and terminology |
references/grid-layout/rules.md | Practical rules, guidelines, and exceptions |
references/grid-layout/examples.md | Bad/good examples and refactoring approach |
references/grid-layout/patterns.md | Reusable formula and implementation patterns |
references/grid-layout/checklist.md | Review checklist and red flags |
workflows/debug-grid-layout.md | Step-by-step workflow |
Source
Derived from Math for Web Design by Paul McFedries, Chapter 4: CSS Grid math.
Citations are tracked in references/source-map.md.
Signals
- GitHub stars
- 1k
- Forks
- 316
- Last commit
- Oct 2026
Advanced
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- skill
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css-grid-math- Source
- github.com/hashgraph-online/awesome-codex-plugins
github.com/hashgraph-online/awesome-codex-plugins