Different browsers render websites differently due to variations in their rendering engines. Cross-browser testing helps identify and fix compatibility issues.
Browser Versions:
Testing should cover multiple versions of popular browsers, as older versions may not support modern web technologies or display content correctly.
Ensuring that websites are responsive and display correctly on different screen sizes and resolutions is essential for a good user experience across devices.
Functional Testing:
Besides visual appearance, cross-browser testing also includes functional testing to ensure that all features and functionalities work as expected across browsers.