HTML
I use HTML for creating Web pages. HTML to describes the structure of a Web page. HTML consists of a series of elements. HTML elements tell the browser how to display the content.
CSS
I use this to design your website and add style by dictating how a site is displayed on a browser. Is unique in that it doesn't create any new elements, like HTML or JavaScript.
JavaScript
I use JavaScript to make web pages interactive. It allows developers to create dynamically updating content, use animations, pop-up menus, clickable buttons, control multimedia, etc.