What is the syntax of UI object identifier used by DOM extension? | Silk Test interview questions

The DOM browser extension uses the following syntax for Web UI objects:
Browser.BrowserChild(”page_title”). html_class(“object_tag”)
1. “page_title” is the title of the Web page, defined by the HTML <TITLE> tag.
2. “object_tag” is the label of the HTML element, How a HTML element is labeled depending on the type of HTML element.