https://www.gcreddy.com/2021/02/selenium-online-training.html
Web Element / HTML Element Knowledge for Selenium Testers, selenium supports functional test automation using web elements or HTML elements so we need to familiar with the Web environment knowledge for performing web testing using Selenium Webdriver.

Browser,
Page,
Frame,

Link - click - It redirects
Edit box - Enter a value - It holds the value
Button - click - It submits
Dropdown box - select an item - It holds the item
List Box - Select one or more items - It holds one or more items
Combo box (Dropdown box + edit box) - select an item or type an item
Radio button - click - It selects an option
Checkbox - click - check or uncheck
Text - - Information/display
Image (general image, image link, and image button)
TextArea - Enter text -
Web Table/HTML Table
etc,

Date picker
Mouse hover
Inline Elements
etc,