Description

This PR adds comprehensive Tailwind CSS documentation for MetaMask Mobile developers. The new documentation provides a complete guide for getting started with Tailwind CSS and TWRNC (Tailwind React Native Classnames) in the mobile codebase.

Changes made:

• Added docs/tailwind.md with comprehensive setup and usage guide

This documentation will help developers:

• Understand how Tailwind CSS works in the React Native context
• Set up proper tooling for the best developer experience
• Learn the correct patterns for using Tailwind classes
• Navigate between twClassName props and useTailwind hook usage
• Follow established best practices and get help when needed

Changelog

CHANGELOG entry: Added comprehensive Tailwind CSS documentation guide for mobile developers

Related issues

Fixes: N/A

Manual testing steps

1. Navigate to the docs/tailwind.md file in the repository
2. Verify all sections are properly formatted and readable
3. Check that all code examples are syntactically correct
4. Ensure all internal links work correctly
5. Verify external links to contributor docs and design system resources are accessible
6. Test that the documentation covers the full developer workflow from setup to advanced usage

Screenshots/Recordings

After

Pre-merge author checklist

• I've followed MetaMask Contributor Docs and MetaMask Mobile Coding Standards.
• I've completed the PR template to the best of my ability
• I've included tests if applicable
• I've documented my code using JSDoc format if applicable
• I've applied the right labels on the PR (see labeling guidelines). Not required for external contributors.

Pre-merge reviewer checklist

• I've manually tested the PR (e.g. pull and build branch, run the app, test code being changed).
• I confirm that this PR addresses all acceptance criteria described in the ticket it closes and includes the necessary testing evidence such as recordings and or screenshots.