Once upon a time, web designers could predict screen resolution with an almost certainty. For the tech savvy, it was 1024 x 768. For everyone else, it was 800 x 600. And, if designers really wanted to control user experience, they'd slap a 'Best Viewed at 1024 x 768 with Internet Explorer' near the bottom of the web page and call it a day.
Although this may seem like an ancient practice, it was only 10 years ago. But nowadays, we no longer need to design for one type of browser and one type of resolution. In fact, we no longer should.
Here's a couple of startling statistics for you:
Both of these numbers are expected to climb, as more and more people get smartphones and mobile devices. Is your web design ready?
This is why responsive web design is so important. Responsive design makes our sites viewable on different devices without compromising style and function. Yes, responsive design is still young. Most designers aren't even implementing it. Those who do may be doing so inefficiency.