The provided sources chronicle the evolution of CSS from its inception in 1996 through major advancements projected to 2025. They collectively illustrate how CSS has transitioned from a basic styling mechanism to a comprehensive design language, highlighting key features like CSS1's foundational elements, CSS2's layout and targeting capabilities, and the modular CSS3 era's aesthetic enhancements, responsive design tools, and animation properties. More recent innovations such as CSS Grid for two-dimensional layouts, Custom Properties for dynamic theming, user preference media queries, and component-based responsive design with Container Queries are also discussed, emphasizing how these developments have significantly enhanced web development practices and user experience over time. The texts collectively underscore CSS's maturation into a powerful, adaptable, and efficient tool for modern web interfaces.