We have covered web frameworks many times before, and just felt that today was a good time to bring everybody up-to-date with some the the recently released frameworks that have stood out from the crowd recently, and may be worth your attention.
New Front-End Frameworks
Materialize is a new framework that utilizes many of the styles, elements, components, animations and of course, the principles of Google's Material Design. It comes in two different forms, the Standard, which includes both the minified and unminified CSS and JS files, and the SASS version, which will give you more control over which components will be included.
Material UI (Less)
Material UI is a Less CSS framework combined with a huge collection of React-powered components that also implement Google's Material Design specs. It's available as an npm package.
Material Design for Bootstrap
Material Design for Bootstrap is, obviously, a theme for Bootstrap 3 that lets you quickly and easily use the design specs from Material Design in your own Bootstrap-powered project.
Smaller in scope than the other Material Design frameworks on this page, but still worthy of a mention, as the Material Framework is super-lightweight and only includes CSS-only components.
Themosis WordPress Framework
Using an elegant and simple code syntax, the Themosis WordPress Framework uses "modern" PHP features like anonymous functions, namespaces, is Composer ready and is a mix between WordPress best practices and a typical MVC framework.
Based on the principles of SMACSS and DRY, PowerToCSS is a lightweight CSS framework that offers a rock-solid foundation to get you started quickly on your next web project.
kouto swiss is a complete CSS framework for Stylus that gives you lots of mixins, functions and utilities to code faster, and also includes the power of the caniuse website to make your stylesheets fit your compatibility needs.
Not a framework per se, but still worth mentioning, Muffin is a design focused front-end web template for reating static sites using SASS and Jekyll. Muffin takes advantage of common practices from Bootstrap, Boilerplate, inuit.css and other libaries to let you get straight into coding straight away.
csstyle is a modern approach for creating maintainable stylesheets. The csstyle method is implemented using a set of SASS mixins that make your CSS readable and semantic, it generates selectors and will automatically handle specificity and nesting.
Furtive is mobile-first framework with a very small footprint. Furtive remains lightweight because it doesn't worry about older browser versions, meaning that it can use ‘cutting edge tech’ like flexbox, SVGs, and limited vendor prefixing. It's also available in SCSS, CSS, and comes with a gulpfile for customizing the build.