Features of your font you had no idea about

The web's clipboard, and how it stores data of different types

Departure Mono is a monospaced fixel font

Font with Built-In Syntax Highlighting

A set of codepens that cover different kind of goey menus

Vertical-Align: All You Need To Know

Mediocre Engineer’s guide to HTTPS

Capsize makes the sizing and layout of text as predictable as every other element on the screen.

SVG Viewer — View, edit, and optimize SVGs

Kobold Letters — Why HTML emails are a risk to your organization

phlex — Phlex is a Ruby gem for building fast object-oriented HTML and SVG components.

Did You Know Fonts Could Do All This?

Designing Beautiful Shadows in CSS

Less Absolute Positioning With Modern CSS

The World of CSS Transforms

siteinspire is a showcase of the finest web and interactive design.

Daily design Inspirations

CSSline is a showcase gallery of excellent sites

godly provides good web design inspiration from all over the internet. (mostly very "active" and bouncy stuff)

Comic Mono — A legible monospace font… the very typeface you’ve been trained to recognize since childhood.