Change the border color of a text field in form (in css) – PT II

Hi Skandha, Sorry for opening a new topic, but somehow my reply won't show up because of: ERROR: Duplicate reply detected; it looks as though you’ve already said that. But anyway, thanks for trying to help me out! Here's where the form is: http://mqdevelop.nl/contact/ And here's what I want it to (somewhat) look like: http://www.cuijkswaterspektakel.nl/inschrijven-beachvolley/