Latest version:
Spectre.css is a lightweight, responsive and modern CSS framework for faster and extensible development.
Spectre provides basic styles for typography and elements, flexbox based responsive layout system, pure CSS components and utilities with best practice coding and consistent design language.
Spectre.css is modified and maintained by the angular-package. Click on the link to see the demonstration created on the @angular.io with modules and components.
Sass
CSS variables
Colors hsla
Customizable
Dark/Light