i am already learned the basic HTML and CSS.I can build any simple website. Download
Programming, or coding, is like solving a puzzle. Consider a human language, like English or French. We use these languages to turn thoughts and ideas into actions and behavior. In programming, the goal of the puzzle is exactly the same -- you're just driving different kinds of behavior, and the source of that behavior isn't a human. It's a computer.
HTML and CSS are actually not technically programming languages; they're just page structure and style information. But before moving on to JavaScript and other true languages, you need to know the basics of HTML and CSS, as they are on the front end of every web page and application.