Simple Introduction of HTML , CSS and Javascript
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HTML (HyperText Markup Language):
🔰Definition: HTML is the standard markup language for creating web pages. It defines the structure and content of a webpage using a system of tags and elements. HTML documents are composed of nested elements that represent various types of content, such as text, images, links, forms, and more.
Example:
🔰In this example, we have a basic HTML document structure with elements like<html>,<head>,<title>,<body>,<h1>,<p>,<img>, and<a>, which represent the various components of a webpage.
CSS (Cascading Style Sheets):
🔰Definition: CSS is a style sheet language used to control the presentation and layout of HTML documents. It allows web developers to style and customize the appearance of HTML elements, such as colors, fonts, spacing, borders, and more. CSS rules are applied to HTML elements using selectors and declarations.
Example:
🔰In this example, we have CSS rules that style the<h1>,<p>,<img>, and<a>elements with various properties like color, font size, font family, line height, width, height, and text decoration.
JavaScript:
🔰Definition: JavaScript is a high-level programming language that enables dynamic and interactive behavior in web pages. It is used to add interactivity, manipulate HTML content, respond to user actions, validate form data, and perform other client-side tasks. JavaScript code is executed by web browsers and can interact with HTML and CSS to create dynamic web experiences.
🔰In this example, we use JavaScript to dynamically change the content of an HTML element with the id "greeting" based on the current time of day. The script retrieves the current date and time, checks the hour, and updates the inner HTML of the "greeting" element accordingly.
👉These examples provide a basic overview of HTML, CSS, and JavaScript, highlighting their respective roles and capabilities in web development. Each language plays a crucial role in creating modern, interactive, and visually appealing web pages.
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