Mastering the basics of HTML and HTML5 is a great skill to have whether you need to learn how to create web page structure, colors, graphics, links, or embed images, audio or videos.
HTML : Hypertext Markup Language is the standard markup language for
creating web pages and web applications. With Cascading Style Sheets and
JavaScript, it forms a triad of cornerstone technologies for the World
Wide Web
So it's time to Start Today.