CSS is broken because some cdn doesnt host it anymore. I haven't had time to look into how it's generated, but a fix would be to host the css in this repo. Here is my cached file css for reference https://gist.github.com/Matistjati/a4ad50ec7d5417481665768d8edb935e The repo containing the theme we are using was deleted https://github.com/rundocs/jekyll-rtd-theme We still have our own fork here: https://github.com/Kattis/jekyll-rtd-theme