CSS Ref per Libor Benes

The Most Comprehensive Offline CSS Reference on the Market.

Features:
• 890+ CSS Features: Extensive database covering properties, functions, pseudo-classes, pseudo-elements, at-rules, selectors, units, and values.
• Smart Instant Search: Live filtering with highlighted matches across feature names, descriptions, and code examples.
• Category System: Org.anized by 110 categories including Layout, Typography, Color, Animation, Flexbox, Grid, and more.
• Clickable Interface: Both top-level category buttons and individual feature badges are clickable for intuitive navigation.
• Practical Code Examples: Real-world usage examples for every CSS feature, ready to copy and use.
• Completely Offline: All data embedded locally - no network requests or external dependencies.
• Sidebar Accessibility: Always available while browsing or developing, without interrupting workflow.

Security & Privacy As Priority:
• Zero Data Collection: No analytics, tracking, or user data collection of any kind.
• No Network Requests: All functionality works entirely offline; no external API calls.
• Secure Implementation: Built with safe coding practices, avoiding dangerous patterns.
• Minimal Permissions: Only requests essential sidebar functionality permissions.
• Privacy First: Designed from the ground up to protect user privacy and security.

With 890+ carefully curated CSS features spanning the entire CSS specification, CSS Ref offers the most extensive offline reference tool for web professionals. Unlike online references that require internet access and may track your usage, CSS Ref provides instant access to the complete CSS ecosystem while guaranteeing your privacy.

Perfect for web developers, UI/UX designers, front-end engineers, and students who need reliable, instant access to CSS documentation without compromising security or privacy.