The interview process at Kit Digital was pretty cool. I was contacted via StackOverflow I saw the kind of developer they were wanting, I want to be that kind of developer. I take to interviews by phone, one by HR and another by the Front End Senior developer leader, then I took the 1:1 in a whiteboard (javascript, css, html). It was a tab window, loading content with ajax. It was amazing because at that time I truly believe that I knew CSS and the interview show me that I was not even a junior css developer, they told me that I was very good with my core javascript was very good by my lack of css knowledge let me out of the position. After that I studied a lot of CSS 2.1 and now I'm starting CSS 3, and my development process is faster because now I know how things happen with CSS (display, position, margins etc).