Sidebar title when using secondary navigation in sidebar

I think you have some broken CSS:

https://www.screencast.com/t/Rth9Bb7VBst

After the @media query CSS block closes theres another set of CSS rules, the last one in that list has an extra closing } which will break any CSS that comes after it.

Well spotted, thanks! I've removed that but the pesky sidebar is still appearing above the sticky header though.

If you add the CSS i provided at the very top of the additional CSS and try increasing the z-index ( another couple of zeros ) - does it work?

Cheers - The css was in a @media section meaning it wasn't applying on desktop. All sorted now - Cheers!

Glad to hear that!!