2016
Smarter Link Underlines For Every Website - Eager Blog

the new code – Use YouTube Videos as Fullscreen Web Page Backgrounds

CSSGram
2015

image-rendering - CSS | MDN

Framer - Prototyping Tool for Designing UI, Interaction and Animation
(via)
Animate.css

CSS Noise | MightyMeta
2014

Sprite CSS Generator — a script plugin for Adobe Illustrator

davidderaedt/Illustrator-Layer-Exporter · GitHub

Phở Devstack - Automated workflow for front-end developers in one tasty bowl of code
by 1 other
Basics of CSS Blend Modes | CSS-Tricks

Readable, Fluid Type With Basic CSS Smarts | Design in the browser with web fonts and real content — Typecast
by 1 other
Avocode – Preview and inspect PSDs

Webflow - Create Website Interactions With 0 Lines of Code

Advanced web typography: Kerning » Blog » Elliot Jay Stocks

slick - the last carousel you'll ever need
by 6 others
Image Blender - tint / blend your images client side using any color - Impact Forums

CSS Masks – How To Use Masking In CSS Now – TNG - The Nitty Gritty

Responsive vertical timeline with CSS – Christian Fei – Web Developer
(via)
Isotope
by 8 others (via)