useful links Selenium Java API Docs chromedriver MDN Element MDN Window Selenium Selenium Page Object Models SeleniumHQ Selenium github geckodriver W3C WebDriver Spec W3C XPath 1.0 Spec TestNG JUnit4 JUnit5 Chrome: F12 or Tools > Developer Tools, Elements Panel, Ctrl+F Firefox: F12 or Tools > Web Developer > Toggle Tools, Web Console Helpers Official Selenium Blog Elemental Selenium Dave Haeffner github