How many times have you encountered a situation where a particular web page or complete website renders differently on different browsers? The situation becomes more complicated when the test is performed on browsers across different platforms and devices (Operating System – Linux, Windows, Android, iOS, etc.; Device Types – Desktops, Mobiles, Tablets, etc.). Hence, testing your website and web applications across various combinations of browsers, platforms, and devices is very critical for your business as any inconsistencies in the functionality could create a negative impression on user-experience and the business. The process of testing across different combinations is termed as ‘Cross-Browser Compatibility Test.
https://dzone.com/articles/complete-guide-on-creating-browser-compatible-html
