Strange bug (possibly) on iOS device?

Hi folks,

I have an odd bug which seems to happen on both my Safari and Chrome browser on my iOS device when in Phone (Portrait) mode where text that is visible in the editor (over the portfolio images ie; Reflective Dude), is not visible when viewed on the iOS device??

Even when viewed from a web browser (and the screen is shrunk down to a portrait width), the text is visible then, but not actually on my device, and I’m really puzzled?? Only happens for Phone (Portrait)??

I have now noticed this issue with Dolphin browser, and Mercury browser on my iPhone 5?

Can anyone chime in here?

Many thanks

Quick note: Not a bug with Webflow, moreso an issue using the pure CSS vertical align solution (it’s a little funky). Have reverted back to my JS alternative.

thanks