VSCode CSS `unknownAtRule` warning fix

📰 Dev.to · Jan

Fix the unknownAtRule warning in VSCode for CSS by updating your linter settings

intermediate Published 26 Sept 2025
Action Steps
  1. Open your VSCode settings using the Command Palette
  2. Search for 'css.lint.unknownAtRules' and update the setting to ignore specific at-rules
  3. Install the CSSLint extension if you haven't already
  4. Configure the CSSLint extension to recognize custom at-rules
  5. Test your CSS file to ensure the warning is resolved
Who Needs to Know This

Frontend developers and designers who use VSCode for CSS development will benefit from this fix to improve their coding efficiency and reduce warnings

Key Insight

💡 Updating your linter settings can help resolve unknownAtRule warnings in VSCode

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🚨 Fix unknownAtRule warnings in VSCode with these simple steps! 💻

Full Article

Have you experienced unknownAtRule linter warning? For recap, here are common CSS at-rules that will...
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