Classic Universal Login does not show Login Button completely on mobile

When navigating to the login view on mobile, the login button is not visible when the url bar on a mobile browser is visible (s.f. https://stackoverflow.com/questions/52848856/100vh-height-when-address-bar-is-shown-chrome-mobile).

Hey there!

Let me report that to our team responsible for Universal Login and get back to you once I have any updates to share.