CSS Advent Calendar 2025
Daily CSS features and techniques for the holiday season
Visit cssadventcalendar.dev ↗What is CSS Advent Calendar 2025?
CSS Advent Calendar 2025 is an interactive calendar that delivers a new CSS feature or technique each day throughout December. Designed for web developers and designers looking to expand their CSS knowledge, the calendar presents bite-sized lessons and examples that build skills progressively. Each day unlocks a fresh topic, from foundational concepts to advanced styling methods.
The maker reports using Claude Code to update the content and links this year, noting significant improvements in accuracy compared to the previous year's version. The calendar provides a structured, engaging way to learn CSS during the holiday period.
Momentum
Daily activity over the last 30 days: upvotes, unique visits, new GitHub stars and Hacker News points.
How do we know it's vibe coded?
vibetrend discovered CSS Advent Calendar 2025 automatically. Evidence: HN post: "This year, I used Claude Code to update the content and every link worked!". View source.
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