AI CSS Refactoring Tools Can Break Layouts Despite Promising Optimization

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AI-powered CSS refactoring tools parse stylesheets and apply heuristics to eliminate dead code, merge selectors, and substitute properties for better performance. However, these tools operate on assumptions about markup and runtime behavior that may not hold true in complex projects. A developer working on a client dashboard found that after applying AI-generated refactoring, widgets lost alignment, hover effects became sluggish, and page load times worsened. Common pitfalls include static analysis missing JavaScript-applied dynamic classes and selector simplifications breaking DOM-hierarchy-dependent styles. Developers are advised to compare CSS snapshots, inspect live DOM classes, profile browser repaints, and roll back changes incrementally to isolate issues introduced by AI refactoring.

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