box-sizing CSS property - CSS | MDN

The CSS lh unit

A look at the CSS line height unit and how it works.

Victor (@vpon.me)

One CSS property just killed every auto-resize textarea script you've ever written. Seriously, one line. The property is field-sizing: content

CSS Anchor Positioning Guide | CSS-Tricks

Learn about CSS Anchor Positioning, including its syntax, properties, how it is used to position one element next to another, and even how it's used to resize elements relative to other elements.

element() CSS function - CSS | MDN

The element() CSS function defines an <image> value generated from an arbitrary HTML element. This image is live, meaning that if the HTML element is changed, the CSS properties using the resulting value are automatically updated.

CSS selectors - CSS | MDN

The CSS selectors module defines the patterns to select elements to which a set of CSS rules are then applied along with their specificity. The CSS selectors module provides us with more than 60 selectors and five combinators. Other modules provide additional pseudo-class selectors and pseudo-elements.

New HTML and CSS features you should be using in your design system - zeroheight

Declan Chidlow explores new HTML and CSS features that can make your design system more flexible, adaptable, and maintainable.

Pretext Does What CSS Can't — Measuring Text Before the DOM Even Exists | HackerNoon

Cheng Lou's Pretext library measures multiline text height without touching the DOM — unlocking layout capabilities CSS has never been able to offer.

2050141 - [text-box-trim] Set layout.css.text-box.enabled for all users

RESOLVED (sajidanwar94) in Core - Layout: Block and Inline. Last updated 2026-07-15.

Box Shadows - Generate CSS Box Shadows

A CSS box-shadow library and generator to create, test and share box shadows.

The CSS Selection - 2026 Edition - Project Wallace

The CSS Selection shows real-world CSS usage from over 100,000 websites and looks at the most important metrics.

CSS is filling the gaps with rules. A way to style gaps in grid and flex. | utilitybend

A practical walkthrough of CSS gap decorations: column-rule, row-rule, rule-break, rule-inset, rule-visibility-items, repeat(), and animation.

GRID: A simple visual cheatsheet for CSS Grid Layout

Learn all about the properties available in CSS Grid Layout through simple visual examples.

Stop Treating CSS Container Queries Like Traditional Media Queries — Smashing Magazine

Despite broad browser support, container queries remain surprisingly underused and frequently misunderstood. Let’s look at how they differ from media queries, when to reach for each, and how container queries help reusable components respond naturally to the contexts in which they appear. - CSS - Tools - Techniques

css-modules/docs/values-variables.md at master · css-modules/css-modules

Documentation about css-modules. Contribute to css-modules/css-modules development by creating an account on GitHub.

The State of CSS 2020: Conclusion

The annual survey about the latest trends in CSS.