Mobile and smartphones are making responsive web design essential Every recent survey suggests that in about three years, more people will use mobile than desktop computers to access the web.

That would be fine if smartphones, tablets and normal computer screens all displayed web content nicely, but the vast majority of pages don't display correctly on all mobile devices. Layouts that look good on a large screen often break when you look at them on a smartphone. Images and navigation menus disappear off the edge of the page, columns lose their alignment and text shrinks to unreadable sizes.