Web Development Basics (HTML, CSS, JavaScript)

Copy this, open Claude, paste it, and Claude will walk you through the lesson step by step.

For a grown-up: Claude is for adults (18+). Copy this, paste it into Claude, and use the answer to explain the lesson to your child.

I'm learning "Web Development Basics (HTML, CSS, JavaScript)" on The Future Market. Lesson 1: "The three languages of the web".

What the lesson teaches:
- HTML (HyperText Markup Language) describes content and structure using tags like <h1> (main heading) and <p> (paragraph).
- CSS (Cascading Style Sheets) controls how things look: colours, fonts, spacing, layout.
- JavaScript adds behaviour: reacting to clicks, showing and hiding things, checking forms.
- A browser (Chrome, Firefox, Safari, Edge) downloads these files from a server and draws the page.
- MDN Web Docs (by Mozilla) is a free, trusted reference for all three languages. When you forget how something works, look it up there.
- A typical small site has three files in one folder: index.html, style.css and script.js. The home page is usually named index.html.

The exercise I'm working on:
Install a code editor. Create a folder called my-site with three empty files: index.html, style.css and script.js.

I'm stuck. Please:
1. Explain the main idea in plain, simple words with one everyday example.
2. Walk me through the exercise one small step at a time. Ask me what I've done so far before giving the next step.
3. Don't just give me the final answer. Help me do it myself, and check my work when I share it.

I'm a parent helping my child (about 8 years old) with a lesson called "The three languages of the web" from the course "Web Development Basics (HTML, CSS, JavaScript)".

Here's what the lesson says:
A web page is like a house. HTML is the walls and rooms (the structure). CSS is the paint and furniture (how it looks). JavaScript is the electricity: it makes the lights turn on when you press a switch.

The activity:
Install a code editor. Create a folder called my-site with three empty files: index.html, style.css and script.js.

Please explain this so an 8-year-old understands: short sentences, a fun everyday example, and no hard words.
Then give me 3 simple questions I can ask my child to check they understood, and a way to do the activity together, one tiny step at a time.