Problem

Copy buttons were non-functional on terminal animation blocks (.termy class) throughout the documentation.

Steps to Reproduce

1. Go to https://fastapi.tiangolo.com/tutorial/first-steps/
2. Scroll to a terminal code block (animated terminal section)
3. Click on the copy to clipboard icon
4. Try to paste the content
5. Actual: Nothing is copied to clipboard
6. Expected: Code content should be copied to clipboard

Cause

The terminal animation code replaced <code> elements with <div> elements, breaking Material for MkDocs' copy button functionality.

Solution

Updated docs/en/docs/js/custom.js to recreate functional copy buttons after terminal animations are initialized. The new buttons:

• Store original text content before element replacement
• Use the Clipboard API to copy text
• Provide visual feedback on successful copy

Screenshots

After