Issue

When zooming in 200% or more on the website, some navigation items in the mobile menu become inaccessible.

Steps to reproduce
Arrive on the site at 200% zoom or more and open the menu toggle.

Suggested fix
Adjust scrolling styles on .header__nav--mobile.is-visible to make sure the whole height of the element’s children is reachable via scrolling.

Reference
Wagtail.org | Accessibility audit spreadsheet