Unit - 3 CSS(Cascading Style Sheet).pptx

Description

Cascading Style Sheets (CSS) is a fundamental technology in web development, responsible for styling and formatting web pages. In this comprehensive guide, we'll delve deep into CSS, exploring its history, syntax, selectors, properties, and advanced techniques. By the end, you'll have a thorough understanding of CSS and its role in modern web design.

Introduction to CSS
Cascading Style Sheets (CSS) is a style sheet language used for describing the presentation of a document written in markup languages like HTML or XML. It enhances the visual appearance and layout of web pages by separating the content from its presentation. CSS enables developers to control various aspects of web design, including fonts, colors, spacing, layout, and responsiveness.CSS was first proposed by Håkon Wium Lie in 1994, and the first version, CSS1, was released in 1996. It provided basic styling capabilities like font, color, and text properties. CSS2, introduced in 1998, added more features such as positioning, floats, and enhanced selectors. CSS3, a modularized version, began development in 1999 and is still evolving today. It introduced numerous new features, including animations, transitions, gradients, and advanced layout techniques.