The HTML DOM is a tree version of how the document looks. Here is a very simple example of an HTML document:
<!doctype HTML><html> <head> <title>Cool Stuff!</title> </head> <body> <p>Awesome!</p> </body></html>
Here's how its tree version will look:
The previous diagram is just a rough representation of the DOM tree. HTML tags consist of head and body; furthermore, the <body> tag consists of a <p> tag, whereas the <head> tag consists of the <title> tag. Simple!
JavaScript has access to the DOM directly, and can modify the connections between these nodes, add nodes, remove nodes, change contents, attach event listeners, and so ...
