Cannot type in text prompt from iPad Pro on website

When I logged on from my iPad pro (with keyboard in landscape mode) it looks like there is an input area just off the bottom of the page. So I cannot type anything in. When I try to tap down there, the iPad takes the touch event near the bottom as for it. So I cannot type in text due to the web UI not coping with an iPad. If you look at the bottom you can see a corner radius of what looks like a white area. The black bar in the middle is the iPad bar for swiping up.

See the bottom of the screenshot. (I had to crop the right edge off the screenshot to make it small enough to fit under the file upload size limit)