HTML is the foundation of all web pages. It defines the structure of a page, while CSS defines its style. HTML and CSS are the beginning of everything you need to know to make your first web page! Learn both and start creating amazing websites.
If interested in learning the basics in both of these languages, we'd recommend the Learn HTML course followed by the Learn CSS course. To view all of the courses and Paths that teach HTML and CSS and learn more about these languages, please see the HTML & CSS course catalog.