Yes you can, it’s just a library include plus a class naming convention.
Here are some examples
@samliew a long-time Webflow heavyweight created a project here as an experiment in this area.
If you’re looking for simple, fast site design with a strict design paradigm, why not?
However;
- Compound elements like sliders and tabs may require some styling work to make them look similar.
- Many of the benefits that Bootstrap gives you ( speed, reuse, a consistent class naming model ) can already be done in Webflow once you know how to use it well.
As Chris shared, Finsweet’s client-first naming convention is central to that.