50 of Our Favorite CSS Libraries, Frameworks and Tools from 2017 – An all-encompassing, categorized list of CSS goodies from 2017.
Modaal – An accessible dialog window plugin for all humans.
How to make your HTML responsive by adding a single line of CSS – Highlighting the ease of creating responsive layouts with CSS Grid.
10 Incredible Logos Built With CSS/JS/SVG – Examples that show the flexibility and creativity made possible through web technologies.
Specificity Visualizer – A visual way to analyze the specificity of selectors in CSS.
Design Principles – A guide to using design principles, with lots of helpful examples.
Pike Admin – A free, lean and modern admin template built with Bootstrap 4.
Hexi-Flexi Grid – A SCSS component, built on the CSS Grid layout, that creates a hexagonal lattice.
Aspect Ratio – A calculator and device resolutions reference for designers and developers.
Manta – Painless invoicing with stunning customizable templates.
Tracy – Convert your monochrome sketches, drawings or hand lettering to SVG.
React Starter Kit – A free, 5-part video course with interactive code examples that will help you learn React.
Getting Hardboiled with CSS Custom Properties – Learning what custom properties are and how to use them.
Elements – A free iOS UI kit, brought to you by Sketch.
iOS 11 iPhone GUI – Origami, Sketch, and Photoshop templates of GUI elements found in the public release of iOS 11.