Drop shadow not showing on iphone

i have a simple drop shadow on a nav bar, but it isnt showing on iphone, it shows fine in various desktop browsers - any ideas as to how to fix please?

Can you please share your project’s public link so it’s easier to understand your issue?

Learn how to do it here: Share a read-only link | Webflow University

here you go, the nav drop shadow doesnt show on iphones: http://ukpts.webflow.com/

Check my link on how to produce the link. You gave me your site link, when I wanted to see inside your designer to spot what was the origin of the bug.

That said, I see the shadow of the navbar on my iPhone.

no drop shadow on iphone 6+ or 4s here!

https://webflow.com/design/ukpts?preview=7316e88d1c821bb5824b305e39afc32f

4S and 6 OK here. Are you sure you’re not facing a cache issue?

dont think so, ive cleared website data several times, plus there is a shadow on the drop down which is working.

thanks for looking into it, lll continue fiddling!