History įurther information: History of the World Wide Web and Web 2.0 The Chrome, Firefox and Safari browsers and developer tools have offered responsive design viewport resizing tools, as do third parties. There have been many ways of validating and testing RWD designs, ranging from mobile site validators and mobile emulators to simultaneous testing tools like Adobe Edge Inspect. CSS tables permitted hybrid fixed and fluid layouts. Different landing page URLs have been used for different platforms, or Ajax has been used to display different advertisement variants on a page. However, search advertising and (banner) display advertising came to support specific device platform targeting and different advertisement size formats for desktop, smartphone, and basic mobile devices. Īlthough many publishers have implemented responsive designs, one challenge for RWD adoption was that some banner advertisements and videos were not fluid. Google has recommended responsive design for smartphone websites over other approaches. Server-side CSS generator implementation of stylesheet languages like Sass can be part of such an approach. He suggested that, compared with a simple HWD approach, device experience or RESS (responsive web design with server-side components) approaches can provide a user experience that is better optimized for mobile devices. Luke Wroblewski has summarized some of the RWD and mobile design challenges and created a catalog of multi-device layout patterns. Browsers of basic mobile phones do not understand JavaScript or media queries, so a recommended practice was to create a basic web site and enhance it for smartphones and personal computers, rather than rely on graceful degradation to make a complex, image-heavy site work on mobile phones. Mobile-first design and progressive enhancement are related concepts that predate RWD. See also: Unobtrusive JavaScript and Progressive enhancement Responsive web design is an example of user interface plasticity. In 2015, for instance, Google announced Mobilegeddon and started to boost the page ranking of mobile-friendly sites when searching from a mobile device. Responsive web design became more important as users of mobile devices came to account for the majority of website visitors.
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