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PRACTICAL WEB PROGRAMMING COURSE

Build for the Web with HTML, CSS, and JavaScript

Learn the building blocks of accessible, responsive web pages and interactive browser behavior. Each lesson provides a runnable example for Open Editor.

What you will learn

  • Structure meaningful content with accessible HTML.
  • Style pages with CSS layout, spacing, color, and responsive rules.
  • Add browser interactions with JavaScript, events, and DOM updates.
  • Build small pages that work on both phones and larger screens.

Practice method: run each example in Open Editor, inspect the rendered result, then change one rule or value and see what changes.

1. HTML foundations

Structure content before styling it

Start with headings, paragraphs, links, and sections that describe the meaning of the content. Semantic HTML gives CSS and assistive technologies a solid foundation.

<main>
  <h1>My study notes</h1>
  <p>A short description.</p>
</main>

2. CSS layout and design

Use layout systems deliberately

Use Flexbox for one-dimensional alignment and Grid for two-dimensional page structures. Keep spacing and colors consistent through reusable CSS rules.

.cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 16px;
}

3. JavaScript interaction

Connect actions to visible results

Use event listeners to react to user actions and update the DOM with focused, predictable code.

button.addEventListener("click", () => {
  message.textContent = "Saved";
});

Before you move on

  • I can create a semantic HTML page.
  • I can use CSS classes to style repeated elements.
  • I can choose Flexbox or Grid for a layout.
  • I can write a small media query.
  • I can handle a browser event.
  • I can update a DOM element safely.