I don't know about CSS frameworks. However, there are web component libraries that match your description perfectly. I absolutely love: - SAP's UI5[0] - VMWa

I don't know about CSS frameworks. However, there are web component libraries that match your description perfectly. I absolutely love: - SAP's UI5[0] - VMWare's Clarity Design[1] Don't worry: You do not need to set up npm projects if you are satisfied with what is available out of the box. It's a matter of including some JavaScript and using the custom HTML5 tags described in the docs alongside your standard HTML. [0]: https://sap.github.io/ui5-webcomponents/ https://sap.github.io/ui5-webcomponents/ [1]: https://clarity.design/ https://clarity.design/ Edit: Updated UI5 URL to point to the web components docs