Why is HTML important? 

It is the foundation of all web pages. It is the standard markup language used to create and structure web pages. It provides the structure for the page, such as headings, paragraphs, lists, links, images, and other elements, which are rendered by web browsers.

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It also enables the incorporation of multimedia elements such as images and videos, and can be used in conjunction with other languages such as CSS and JavaScript to create interactive and visually appealing websites.