No it doesn't, but you are welcome to propose a PR if you want to add it.

Girouette does have a function to combine multiple tailwind classes together. You can see it working in the example project at https://github.com/green-coder/girouette/blob/master/example/reagent-demo/src/acme/frontend/my_css.cljc#L13-L15

Alternatively, there is the Ornament library which also provide a way to combine them, maybe in a more elegant way. https://github.com/lambdaisland/ornament

Thanks @U8MJBRSR5 wish I knew enough to contribute a PR. There is a knowledge gap that prevents me from appreciating ornament, garden and other cljs css libs. However I love how tailwind and by extension girouette really get out of my way and let me tinker. I keep thinking how amazing it will be to create a design system with girouette.