Unable to scroll text when creating a post and a picture added

What I was trying to do:

Wiring a post with lots of text while adding a picture

What I expected to happen:

1. Be able to scroll up / down in the text entry box when trying to write more lines of text than there are visible lines in the text window of the create a post

2. Be able scroll up / down the entire post when I want to get to the sections below where the picture is added (add/remove tagged EO's, Post Location, Add another pic, etc)

What actually happened: I was unable to do items 1 and 2 as described in the expected behavior above.

See image: