Rewrite with posthtml

[stevenvachon]

Judging from your other projects, this is probably on-track with your goals. I've built something similar already this week, using some of your tools and others not. Instead of creating my own project, it might be beneficial to us both to keep the work here. Let me know your thoughts.

The biggest thing preventing that from happening, I think, would be if your opinions on #18 have not changed.

[stevenvachon]

Actually, now that I know about GMail supporting <style>, my project idea is mostly useless.