Category & tag breadcrumbs dropdown positioning issue

Development
2

This is a little bit of an unexpected one, but it seems that the positioning is impacted by

html body #main-outlet {
  -webkit-backdrop-filter: blur(8px);
  backdrop-filter: blur(8px);
}

Removing those lines fixes it for me.

Apparently backdrop-filter creates a new block context in CSS, some more info here… https://stackoverflow.com/a/52937920/1869753

This means that your position:fixed element will be positioned relatively to the filtered container and no more the viewport. In other words, it’s still fixed but inside its new containing block (the filtered container)