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HTML, CSS, and JavaScript Learning Materials

website·Indexed 30 days ago

https://eteszt.github.io/html-css-tananyag

A comprehensive educational resource for modern web development basics. It covers HTML fundamentals (elements, tables, links, and images), CSS styling (box model, properties, and selectors), and JavaScript programming (variables, functions, and DOM manipulation). The materials include interactive editors, quizzes, and practical exercises such as form validation.

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What's inside HTML CSS JavaScript Tananyag

  1. Overview of the HTML, CSS, and JavaScript curriculum

    The curriculum is designed to teach the fundamentals of modern web development through four main modules:

    1. HTML Basics: Structural layout of web pages, text elements (headings, paragraphs), tables, links, and image handling.
    2. CSS Basics: Styling and formatting, colors, background settings, layout, positioning, and the box model.
    3. JavaScript Basics: Variables, data types, functions, events, DOM manipulation, and creating interactive pages.
    4. Integrated Development: Applying styles to HTML elements, using classes and IDs, event handling, and developing complex interactive websites.

  2. Understand the CSS Box Model components

    The CSS Box Model defines how browsers render HTML elements. Every element is treated as a rectangular box consisting of four layers (from outside to inside):

    1. Margin: The outermost space around the element.
    2. Border: The frame surrounding the padding and content.
    3. Padding: The inner space between the border and the content.
    4. Content: The actual content of the element.

  4. Understand the Document Object Model (DOM) structure

    The DOM (Document Object Model) is a programming interface that represents an HTML document as a tree structure. Each HTML element in the document is treated as a node in this tree, allowing JavaScript to access and modify the page content and structure.
    document
  └── html
      ├── head
      │   ├── title
      │   └── meta
      └── body
          ├── h1
          ├── p
          └── div

  5. Understand the purpose of HTML

    HTML (HyperText Markup Language) is a markup language used to create web pages. It is not a programming language, but a tool used to describe the structure and content of a web page. It is primarily used for structuring content, displaying text, images, and links, formatting documents, and creating elements like tables and forms.

  7. HTML practice exercises for beginners

    Use these sample tasks to practice your HTML skills in the editor:

    Task 1: Simple Business Card Create a profile containing:

    • Your name as a heading
    • A short introduction as a paragraph
    • A list of your hobbies
    • Contact information in a separate paragraph

    Task 2: Mini Blog Post Create a blog entry containing:

    • A title
    • Author name and date
    • Multiple paragraphs of content
    • A list of tags

  9. Set up the basic HTML document structure

    A standard HTML document requires a root <html> element, a <head> section for metadata, and a <body> section for the visible content.
    <html>
  <head>
    <!-- Metadata goes here -->
  </head>
  <body>
    <!-- Visible content goes here -->
  </body>
</html>

  10. Use CSS IDs for unique element styling

    IDs are used to target a single, unique element on a page. An ID must only be used once per page. In CSS, IDs are targeted using the hash (#) prefix.
    <!-- ID must be unique on the page -->
<div id="fejlec">
    <h1>Website Title</h1>
</div>
    #fejlec {
    background-color: navy;
    color: white;
    padding: 20px;
}

  11. Embed images in HTML

    Use the <img> element to embed images. It is a self-closing tag. The two primary attributes are:

    • src: The path to the image file (relative or absolute).
    • alt: Alternative text for accessibility and screen readers, or displayed if the image fails to load.
    <img src="cat.jpg" alt="A grey cat">