Cool site! The hovers for me are a little jolting (all of the cells flash when I mouse over one). Safari 10.1.2 on OS X 10.12.6. Normally I would ignore something like this but since it's a site focused on design/UX I figured you'd probably want to know. Bookmarked, nice work!
Video in case you can't recreate: https://streamable.com/mwee8