Modern CSS Techniques for 2025

CSS continues to evolve with powerful new features that make web design more creative and efficient. In this article, we'll explore the latest CSS techniques and features that every developer should know in 2025.

Container queries are a game-changer for responsive design. Unlike media queries that respond to the viewport size, container queries respond to the size of a container element. This allows for more modular and reusable components that adapt to their container size rather than the viewport.

CSS Grid and Flexbox are now well-supported and essential for modern layouts. We'll explore advanced patterns and techniques that go beyond the basics, including grid template areas, auto-placement algorithms, and complex flexbox layouts that solve real-world design challenges.

CSS custom properties (variables) have become incredibly powerful with new features like cascade layers and scoped styles. We'll explore how to use these features to create more maintainable and scalable stylesheets, and how they integrate with modern design systems.

Modern CSS introduces new color functions and spaces that provide more control over color manipulation. We'll explore features like oklch(), lab(), and color-mix(), which offer better perceptual uniformity and more intuitive color manipulation for modern web designs.