Hide HTML element by id

Question

Hopefully there\'s a quick and dirty way to remove the \"Ask Question\" (or hide it) from a page where I can only add CSS and Javascript:

Answer 1

I found that the following code, when inserted into the site's footer, worked well enough:

This may or may not require jquery. The site I'm editing has jquery, but unfortunately I'm no javascripter, so I only have a limited knowledge of what's going on here, and the requirements of this code snippet...