A proposal for integrated CSS support can be found here: https://github.com/yewstack/yew/issues/533
This contains a lot of discussion about how to best integrate CSS support into Yew.
Currently, the approach we've adopted is to encourage developers to build a number of systems, before adopting the most popular one.
The community are currently developing a number of projects to make it easy to add styles to projects. A few are given below:
- yew-mdc - Material Design Components.
- muicss-yew - MUI CSS Components.
- Yewtify – Implements the features provided by the Vuetify framework in Yew.
If you're developing a project adding styles to Yew please submit a PR adding yourself to this list!