HTML provides the basic structure of sites, which is enhanced and modified by other technologies like CSS and JavaScript. CSS is used to control presentation, formatting, and layout. JavaScript is used to control the behavior of different elements.

HTML, CSS, and JavaScript form the basic tools for creating and formatting a page of website. They also allow addition of interactive objects as well as functional elements to a webpage. They collaborate in creating the nature, shape, and feel of web pages.

HTML (Hypertext Markup Language):Web development begins with HTML. It uses a system of tags, elements, and attributes for establishing the structure and content of web pages. HTML includes various tags that define things like heading, paragraph, pictures, link, and form found in a website and the page. This is an interpretive mark up language which web browsers use to show content in a structured format.

CSS (Cascading Style Sheets): It controls the visual presentation of web pages through its style sheet language known as Cascading Style Sheets (CSS). It helps you choose how the page will look like and its appearance in terms of color, font, and so forth. Selectors serve as filters to apply the rules of CSS to some or all HTML elements while properties define the appearance of these elements. Appropriate use of CSS helps to apply styles directly in the HTML document, as well as in independent CSS files that enhance reusability and maintenance efficiency.

JavaScript:It is extremely flexible programming language for web pages, with which you can make your website alive through its functioning. It makes it possible for a single web page to respond to user actions, modify the Dom, and communicate with different servers to either download data, or submit information.

Dynamic creation of interactive features like slider, form verification, among others is achievable through this framework. They use script file to embed the javascript code directly into an html file and then execute it in web browsers. Together, these technologies create a fully-integrated web experience. The structure & content is in HTML, visual design comes from CSS, and interactive behaviour comes from JavaScript.