Recommend by Google, Responsive Web design has become the preferred method for developing websites. ... Source: “ Prioritizing Devices: Testing and Responsive Web Design.

Before buying a WordPress theme, it’s important to put it to the test to see how responsive the design really is. You don’t have to view the design in different devices to do that.

Google is making a tweak to Search on desktop web that sees the results page adopt a more responsive design. Still in testing, it follows the homepage abiding by the same principle.