

We should explain a few bits of terminology here. Note: Make the web work for everyone provides more useful perspective on the different browsers people use, their market share, and related cross browser compatibility issues.
CREATE WEB BROWSER FOR MAC, WINDOWS, LINUX PRO
Remember that you are not your users - just because your site works on your MacBook Pro or high-end Galaxy Nexus, doesn't mean it will work for all your users - there's a whole lot of testing to be done!

People with disabilities, who use the Web with the aid of assistive technologies like screenreaders, or don't use a mouse (some people use only the keyboard).Different devices with different capabilities, from the latest greatest tablets and smartphones, through smart TVs, right down to cheap tablets and even older feature phones that may run browsers with limited capabilities.Different browsers other than the one or two that you use regularly on your devices, including slightly older browsers that some people might still be using, which don't support all the latest, shiniest CSS and JavaScript features.As a web developer, it is your responsibility to make sure that not only do your projects work, but they work for all your users, no matter what browser, device, or additional assistive tools they are using. Cross browser testing is the practice of making sure that the web sites and web apps you create work across an acceptable number of web browsers.
