fieldset: The Field Set element - HTML | MDN

Frontend
Primitives — Radix UI
Simple.css - A classless CSS framework
Vanta.js - 3D & WebGL Background Animations For Your Website
GitHub - nolanlawson/fuite: A tool for finding memory leaks in web apps
Patterns.dev - Modern Web App Design Patterns
Floating UI - Positioning for tooltips, popovers, dropdowns, and more
ffflux → Online SVG Fluid Gradient Background Generator
My Custom CSS Reset
LinusU/wext-shipit
DrewML/chrome-webstore-upload-cli
Animista - CSS Animations on Demand
5 steps to faster web fonts /// Iain Bean
Identify and Extract Pseudo-Element Selectors from built-in HTML Elements using DevTools – Bram.us
Modern CSS Upgrades To Improve Accessibility | Modern CSS Solutions
How to remove/ignore :hover css style on touch devices
Scrollbars on Hover | CSS-Tricks
How to Add Commas Between a List of Items Dynamically with CSS | CSS-Tricks
GitHub - prateekbh/babel-esm-plugin: Add this plugin to generate mirrored esm modules for your existing bundles
Maximally optimizing image loading for the web in 2021
How to Favicon in 2021: Six files that fit most needs — Martian Chronicles, Evil Martians’ team blog
Publish, ship, and install modern JavaScript for faster applications
How to Build HTML Forms Right: Styling
Firefox Addon Action · Actions · GitHub Marketplace
balazsbotond/urlcat
Chrome Addon Action - GitHub Marketplace
Modern CSS Solutions
Writing your first service worker with vanilla JS
Modern CSS grid solutions to common layout problems
content-visibility: the new CSS property that boosts your rendering performance