Steps to reproduce:
- Open an article with TOC.
- Click the first link in TOC.
The first headline is visible just below the header.
The first headline is covered by the header.
I see that there is a ::before element that tries to prevent this, but it doesn't seem to work. In the screenshot, the headline is highlighted, the wide block is the ::before, the narrow block the headline itself (i.e. the span with the id).