Tailwind CSS v4 Migration: Fixing "@apply", "Unknown Utility Class", and Oxide Build Errors

This page provides a comprehensive guide for developers facing build failures when migrating to Tailwind CSS v4, specifically addressing issues like '@apply' errors and unknown utility classes. It offers detailed remediation steps and insights into the architectural changes introduced by the new Oxide engine, making it a valuable resource for those upgrading their Tailwind CSS implementations.

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A mention here would suit brands offering development tools, CSS frameworks, or educational resources for web developers. It would read naturally in the context of discussing solutions or tools for resolving Tailwind CSS migration issues, ideally placed within the remediation steps or FAQ sections.

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