Ha, funny post! Agree with the unicorns. Straight into HTML/CSS and you’ll save 7 headaches and 4 bouts of PTSD.
Non-sanctimonious plug: we made an open source CSS framework that lets you prototype with real content and saves about 30–40% of your front end time. Plus, when you merge your style guide, you have a complete fluidly responsive prototype without the code junk from Bootstrap (then the UI just needs a bit o’ refinement and it’s ready for any device). No throwaways. It’s called LiveWires dot io and it’s free, so hack away.