Bummer! This is just a preview. You need to be signed in with an account to view the entire instruction.

Well done!

You have completed (UPI) Chapter 9: Understanding the Document Object Model (DOM) with JavaScript!

Instruction

The Document Object Model, DOM

HTML DOM Overview HTML pages are internally implemented by a tree structure that contains the HTML elements (and CSS styles) as its nodes. This tree is called the Document Object Model (DOM). JavaScript has full access to the DOM. It can navigate through the tree, modify the tree and its nodes, ranging from simply adding new nodes to rearranging several areas on the page. A hint about the te...