What is HTML?
Essentially, HTML(Hyper Text Markup Language) and CSS are languages that are the foundations of the worldwide web. HTML— or “HyperText Markup Language”— more or less explains to your browser how to draw the website onto your screen. HTML is used basically everywhere to define visual elements like headers, paragraphs, images, hyperlinks and so on. HTML provides the framework for the page you're currently looking at right now. Don't squint and move closer. To see the code you'd have to open a Source tab. Or be Neo from The Matrix.