trav1s/Highlight-Indentation-for-Emacs — pull request #1 by rNoz (2014-07-22 18:43:18+00:00)
Title: added support for web-mode, jade-mode and stylus-mode (derived sws-mode)

`web-mode` provides multiple languages/styles per buffer, but the main (and common in this mode) is `html`. Also, there are multiple vars focused on the indentation offset per language (by default all have the same value, and all are loaded under this mode).

I think it is not supported different highlights (offsets) per buffer with this mode. So, I think this is the best option nowadays.