I worked with Javier (hi! ) at Montage Studio where we built a web app framework and an IDE inspired by the Apple development stack. Javier is an amazing mind and a wizard at CSS. Fun fact: he used to sketch out code in good 'ol Notepad! Here are a few more js1k entries by him:
http://www.romancortes.com/blog/furbee-my-js1k-spring-13-ent...