I’ve pared down, to the bare minimum, the button that “depresses” in Firefox, from the original page. I took the CSS for said button and added it to the CSS of the contact page where the button does not depress in Firefox, and nothing happened. I didn’t expect it to however as there is nothing there that is so different as to cause the desired action.
I’m assuming that the issue is with the contact form page functions over the original, or something on the original such as an input e.g.
<input type='submit' name='Submit' value='Submit' />that isn’t on the contact page. I’m just too new at all of this to identify what the differences are and how to adapt this.
I’m hoping what I’ve done helps someone help me to adapt this.