CSS3, or Cascading Style Sheets Level 3, is the third major version of the CSS standard used for describing the presentation of a document written in HTML or XML. It is a cornerstone technology of the World Wide Web, alongside HTML and JavaScript.
CSS3 introduces a range of new features and enhancements to improve the styling and layout capabilities of web pages. These include advanced selectors, box model enhancements, new color models, and improved media queries for responsive design.
CSS3 also supports animations, transitions, and transformations, allowing for more dynamic and interactive user interfaces. It introduces modules like Flexbox and Grid for complex layouts, and features such as custom fonts, shadows, gradients, and rounded corners for enhanced visual effects.
CSS3 is designed to be backward-compatible, ensuring that new features do not break existing web pages. It is developed by the World Wide Web Consortium (W3C) and is continuously evolving to meet the needs of modern web development.
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