Gitpod has great HTML and CSS support. In fact, Gitpod was made with web development in mind. And, depending on your needs, you may want to customize this experience further!
Here are a few HTML/CSS example projects that are already automated with Gitpod:
|Front-End-Checklist||The perfect Front-End Checklist for modern websites and meticulous developers|
|Devhints||TL;DR for developer documentation - a ridiculous collection of cheatsheets|
Gitpod comes with emmet support right out of the box giving you access to powerful snippets and completions
With Gitpod you can open a preview for Markdown and HTML files while you are coding in the upper right-hand corner click it see the result in real-time!
Want to try it out? And see a minimal example in action? Great, then you can open this in Gitpod: