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CSS

Cascading Style Sheets (CSS) is a simple language for adding style (e.g., fonts, colors, spacing) to HTML documents. It describes how HTML elements should be displayed.

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Firefox userChrome.css: Customizing the Browser UI with CSS

Firefox userChrome.css: Customizing the Browser UI with CSS

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3 min read
CSS Logical Properties: The Modern Way to Handle RTL, LTR, and Writing Modes

CSS Logical Properties: The Modern Way to Handle RTL, LTR, and Writing Modes

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3 min read
CSS Animations and Transitions: What to Animate, prefers-reduced-motion, and Performance

CSS Animations and Transitions: What to Animate, prefers-reduced-motion, and Performance

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4 min read
How to Build Dual-Pass Strokes with FSCSS Array Methods

How to Build Dual-Pass Strokes with FSCSS Array Methods

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5 min read
CSS Container Queries: Truly Reusable Components That Adapt to Their Container

CSS Container Queries: Truly Reusable Components That Adapt to Their Container

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3 min read
Modern CSS in 2024: Nesting, :has(), Container Queries, color-mix(), and More

Modern CSS in 2024: Nesting, :has(), Container Queries, color-mix(), and More

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3 min read
CSS Cascade Layers (@layer): End Specificity Wars Forever

CSS Cascade Layers (@layer): End Specificity Wars Forever

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3 min read
CSS Custom Properties: Beyond Variables — Theming, Animation, and @property

CSS Custom Properties: Beyond Variables — Theming, Animation, and @property

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3 min read
CSS Animations and Web Animations API: From Transitions to Full Control

CSS Animations and Web Animations API: From Transitions to Full Control

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3 min read
CSS Grid Advanced: Named Lines, Subgrid, auto-fit, and the Firefox Inspector

CSS Grid Advanced: Named Lines, Subgrid, auto-fit, and the Firefox Inspector

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4 min read
Firefox Developer Edition: What's Different and Why Developers Should Use It

Firefox Developer Edition: What's Different and Why Developers Should Use It

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3 min read
Firefox Responsive Design Mode: Touch Simulation, DPR, Breakpoints, and Dark Mode Toggle

Firefox Responsive Design Mode: Touch Simulation, DPR, Breakpoints, and Dark Mode Toggle

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4 min read
CSS Custom Properties Deep Dive: Inheritance, @property, JS Integration, Dark Mode, and Design Systems

CSS Custom Properties Deep Dive: Inheritance, @property, JS Integration, Dark Mode, and Design Systems

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3 min read
Intersection Observer API: Lazy Loading, Infinite Scroll, Scroll Animations, and TOC Active Links

Intersection Observer API: Lazy Loading, Infinite Scroll, Scroll Animations, and TOC Active Links

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3 min read
userChrome.css: Customizing Firefox's UI with CSS (Tab Bar, Toolbar, Compact Mode)

userChrome.css: Customizing Firefox's UI with CSS (Tab Bar, Toolbar, Compact Mode)

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3 min read
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