Document tree

Family tree of parents and children

1. Definition

   HTML nests elements into a tree the browser calls the DOM.

2. Diagram

   html → head/body → children.

3. Animation

   Nested boxes expand with each spoken level.

4. Example

   Open the visual guide example.

   Open →
5. Interactive playground

   Practice in the classroom playground.

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6. Quiz

   Check understanding on the public guide or interview hub.

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7. Lesson

   Start the full interactive lesson.

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