Wired red lines on CSS and HTML editor

I’m currently working on the Responsive Web Design Certification, and I’m seeing red underlines throughout my code editor. This is happening both in the project I’m working on now and in a lab I completed about four months ago.

I’ve attached an image showing the red lines I’m seeing. I’m wondering if there’s a way to fix this or if it’s an issue with the editor.

My operating system is Chrome OS 147.0.7727.115, and I’m using the Chrome browser.

Thank you for your help.

Hi @Moore.Joel,

I checked the screenshot, and the red underlines are not CSS errors. They come from the browser’s spell checker, which is flagging code terms (like class names, CSS properties, and values such as “flex”, “wrap”, or “px”) as misspelled words.

Your CSS is valid, and this does not affect how your code runs—it’s only a visual issue.

You can fix it by switching the spell check language to English or disabling it in Chrome settings.

Hope this helps!

Hi @gokdemiraytacpro,

Thank you for your input, but this issue seems to be specific to the freeCodeCamp editor when viewing Python code. It is not an issue when viewing JavaScript code, so I doubt if it’s browser specific.

If someone from the support team doesn’t respond soon to the recent posts about this, I will create a GitHub issue.

Happy coding!

Hi @dhess,

Thanks for your feedback and for the clarifications :+1:

Sorry for this mistake and for any confusion it may have caused.

Happy coding to you too.