Responsive Web Design is a new approach to developing websites that first appeared in the CSS3 version. The key of responsive web design is actually a cascading style dynamic content that adapts to screen sizes (as the name itself suggests, responsive - flexible) your website loads on, whether on mobile devices, tablet devices or desktop computers with various screen resolutions. This contributes to the excellent visibility of the website content, unlike with "non-responsive" static contents that require constant zooming, scrolling and moving. Responsive design has opened up a new era of web design by being a much more cost-effective alternative to mobile applications development. Namely, there is a growing use of mobile and tablet devices worldwide when it comes to searching online content, and if you want your content to be accessible to everyone, responsive web design is inevitable.
The standard dimensions used for responsive web design are 320 px, 768 px and 1024 px. The first dimension is, as you can assume, for mobile devices, the second for tablet devices, and the third for desktop computers. But what about those devices whose screen dimensions do not fit these dimensions? There is a simple solution to such a problem, and the answer lies in the maximum and minimum. If the screen width is less than 768 px, the mobile phone screen size will be displayed. 768 px is the turning point in case of switching from tablet screen mode to mobile phone mode. The same goes for computer – tablet modes. If the screen width is less than 1024, computer mode goes to tablet mode. Automatic and easy content manipulation is just one of the benefits of responsive web design. However, as a large number of devices emerge every day on the market, both mobile and tablet devices, with various sizes and settings, the turning points cannot be defined for each one, but it is possible to create them to be displayed in the best possible way. This is a major advancement in web design taking into account the websites that were current several years ago and still exist today: those static and responsive only to desktop computers.