When I am on the FreeCodeCamp website there is this weird blue line that just stays on the website and does not move and I don’t know why it is there. It shows up sometimes and sometimes its not there.
sanity
April 3, 2026, 12:29pm
3
Thanks for reporting the issue, this one is known already. Some more about it can be found at:
opened 05:26AM - 27 Mar 26 UTC
scope: UI
platform: learn
### Describe the Issue
A blue horizontal line appeared across the page unexpect… edly. This seems to happen randomly and is not consistently reproducible.
### Affected Page
https://www.freecodecamp.org/learn/
### Steps to Reproduce
Not consistently reproducible.
Observed once while using a freeCodeCamp lesson/quiz page:
1. Open a lesson or quiz
2. Navigate normally through the page
3. At some point, a blue horizontal line appears
Note: The issue disappears after refreshing the page.
### Expected behavior
The page should not display any unexpected UI elements such as a blue horizontal line.
### Screenshots
<img width="1600" height="690" alt="Image" src="https://github.com/user-attachments/assets/c1a031cf-4ffe-434d-9ad9-a6faa015d4b4" />
<img width="1262" height="529" alt="Image" src="https://github.com/user-attachments/assets/2b1b319c-cd92-49d5-9e74-c2e88d09e67f" />
### System
- Device: [Laptop]
- OS: [Windows 11]
- Browser: [Chrome]
- Version: [e.g. 22]
### Additional context
- The blue line looks similar to a focus border or outline
- It may be related to :focus or :focus-visible styles
- Could be triggered by an element receiving unintended focus or a temporary UI/render issue
- The issue disappeared after a page refresh
- Since this is not reproducible, logging for visibility in case others encounter it
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