Drupal Homepage Text Overlay Fix

I'm experiencing a text overlay issue on my Drupal 8 site, on the homepage. The text which overlays the hero image, has been corrupted by the user. This issue arose after the user tried to edit the text content, the style and size was corrupted from the original intention.

Ideal skills and experience for the job include:
- Proficiency in Drupal
- Web development and design experience
- Problem-solving skills to identify and rectify the overlay issue

Please help me resolve this issue promptly. Thank you.