Tutoriel HTML, CSS and JavaScript for beginners
HTML: The Foundation of Web Pages
- What it is: HTML (HyperText Markup Language) is the backbone of every web page. It defines the structure and content of a page, such as headings, paragraphs, images, and links.
- Key concepts:
- Elements: Building blocks of HTML, like
<h1>
for headings,<p>
for paragraphs,<img>
for images, and more. - Tags: Used to define the start and end of elements (e.g.,
<h1>This is a heading</h1>
). - Attributes: Provide additional information about elements (e.g.,
src
attribute for image source).
- Elements: Building blocks of HTML, like
- Basic structure of an HTML page:
HTML
<!DOCTYPE html>
<html>
<head>
<title>Page Title</title>
</head>
<body>
</body>
</html>
CSS: Styling for Beauty
- What it is: CSS (Cascading Style Sheets) controls the visual presentation of web pages, including colors, fonts, layouts, and more.
- How it works: CSS rules are applied to HTML elements to style them.
- Key concepts:
- Selectors: Target specific HTML elements to apply styles.
- Properties: Define the style characteristics you want to change (e.g.,
color
,font-size
,margin
). - Values: Set the desired values for properties (e.g.,
color: blue;
).
- Example CSS rule:
CSS
h1 {
color: red;
font-size: 40px;
}
JavaScript: Adding Interactivity
- What it is: JavaScript is a scripting language that brings interactivity and dynamic behavior to web pages.
- What it does:
- Interacts with HTML elements to modify their content and appearance.
- Responds to user actions (like clicks, form submissions).
- Creates animations and visual effects.
- Key concepts:
- Variables: Store data for later use.
- Functions: Reusable blocks of code that perform specific tasks.
- Events: Actions that trigger JavaScript code execution (e.g., clicks, page loads).
- Example JavaScript code:
JavaScript
function greet() {
alert("Hello, world!");
}
Working Together: The Dynamic Trio
- HTML provides the structure.
- CSS adds the style.
- JavaScript brings the action.
Practice and Exploration:
- Use online resources and tutorials to delve deeper into each language.
- Experiment with code examples and create your own web pages.
- Build interactive and visually appealing websites by mastering these core technologies!