HTML5
CSS
- 7 CSS Units You Might Not Know About
- material-ui – A CSS Framework and a Set of React Components
- Materialize, a CSS Framework based on Material Design
- Using shades for eye-catching emphasis
- Cool Image Hover Effect With Pure CSS3
General
- 199 slides on Front-end Tooling Workflows
- Mozilla Introduces the First Browser Built For Developers: Firefox Developer Edition
- The $PATH to Enlightenment
- Showcase of Website Designs with Serif Typography
Responsive
- 9 basic principles of responsive web design
- Responsive Web Design Adoption, 2014
- Rethinking Icon and Logo Design for the Responsive Web
- Responsive Images: Use Cases and Documented Code Snippets to Get You Started
UX
Sass / Less
Accessibility
JavaScript
- The 15 Best JavaScript Charting Libraries
- Detect if browser supports base64 dataURI using JavaScript
- Micro jquery substitute for modern browsers
- gcloud-node – Google Cloud Client Library for Node.js
- vivus – JavaScript library to make drawing animation on SVG
- Remove UTM Parameters from URLs