Category section when creating a topic can be moved out of place by scrolling down


This bug, as explained in the title, allows the category section to be moved out of place.

###Steps to reproduce:

  1. Scroll down to the bottom of the category section.

  1. Continue scrolling down on the category section.

You should have the category section scroll up the page as you continue scrolling down.

This is a relatively simple bug, and hopefully is pretty simple to fix. :slightly_smiling_face: