Oruga UI
Oruga is a lightweight library of UI components without CSS framework
... depend on any specific style or CSS framework (like Bootstrap, Bulma, TailwindCSS etc...) and it doesn't provide any grid system or CSS utility, it just offer a set of components easy to customize. Oruga wants you to focus only on UI/UX aspects of your application and be totally flexible to future changes without having to touch a line of JavaScript.