I viewed his little creation as &quot;extra credit&quot;. It shows he knows Sass&#x2F;CSS and makes him standout from other &quot;boring&quot; interviewees that may have possessed similar skillsets.<p>Why not make it about their brand? It shows his desire that he wants to work there, and it&#x27;s also clear he just made this. It isn&#x27;t some cool thing he did awhile ago and is showing many different companies in interviews. He wants to work there, and that initiative shown will go a long way (and was successful, in this case).<p>Worst-case scenario is that he doesn&#x27;t get the job but spent the night learning more about pseudo elements and how the interact with other elements. That&#x27;s a win-win.