View actual HTML DOM
When you are debugging client-side code, the Elements tab of the Debug tool window shows the HTML source code that implements the actual browser page and its HTML DOM structure.
Any changes made to the page through the browser or in the editor are also immediately reflected in the Elements tab.
Currently this functionality is supported only for Google Chrome and only during a debugging session.
Before you start
Install and enable the LiveEdit plugin on the Settings | Plugins page, tab Marketplace, as described in Installing plugins from JetBrains repository.
View the HTML source and DOM structure of the actual page
Switch to the Debug tool window and open the Elements tab. The tab consists of two read-only panes.
The Text pane shows the HTML source code of the page that is currently opened in the browser. As soon as any change is made to the page in the browser (e.g. clicking an icon), the code in the pane is updated accordingly.
The Structure pane shows the DOM structure of the HTML code in the Text pane.
The Structure and the Text panes are mutually synchronized. When you click a node in the DOM structure, IntelliJ IDEA scrolls through the contents of the Text pane. The panes are also synchronized with the browser: as soon as you click a node in the DOM structure or in the Text pane, IntelliJ IDEA highlights the corresponding element in the browser.
To view a tree of executed scripts, open the Scripts tab.