As websites grew more complex, HTML alone became insufficient for handling visual design and layout. A separate styling solution was needed to improve consistency and flexibility.

CSS (Cascading Style Sheets) was first proposed by Håkon Wium Lie on October 10, 1994, while working with Tim Berners-Lee at CERN.

The idea was simple but powerful:

separate the content (HTML) from the design (CSS).

The World Wide Web Consortium evaluated multiple style sheet proposals and officially released CSS1 in 1996.

Its goal was to:

• Improve visual consistency across websites
• Simplify styling and formatting
• Reduce repetitive HTML code

As the web rapidly evolved, more advanced design features were needed.

In response, W3C released CSS2 on May 12, 1998.

CSS2 introduced:

• Positioning (absolute, relative)
• Media types (screen, print)
• More control over layout and rendering

To keep up with modern web requirements, CSS3 was introduced on June 19, 2012.

Unlike previous versions, CSS3 is modular, meaning features are developed in separate modules.

Key improvements include:

• Animations and transitions
• Rounded corners and shadows
• Flexbox and Grid systems
• Improved responsiveness

CSS3 continues to evolve and serves as the foundation for future versions like CSS4.

Today, CSS is fully supported by all modern browsers and is an essential part of web development.

It offers:

• Flexibility in design
• High performance
• Powerful layout and styling tools

Without CSS, modern web design as we know it would not be possible.