What is CSS?

• CSS stands for Cascading Style Sheets, and it is a language used to style and format HTML documents. 
• CSS is used to control the presentation of web pages, including layout, colors, fonts, and other visual elements. 
• By separating the presentation layer from the content layer (which is defined using HTML), CSS allows web designers to create consistent and visually appealing designs across multiple web pages, while also making it easier to update the design of a website without changing the underlying content. 
• CSS works by specifying rules that apply to different HTML elements, allowing designers to control how those elements appear on the page.