These days people traverse the Internet on a variety of platforms: desktops, laptops, iPads and other tablets, mobile phones. And you can bet more options are coming down the road. How will your website look on each of these devices? A mobile phone screen is a tiny fraction of the size of a common desktop monitor. Your exquisitely detailed layout for a big screen could be a muddy mess on a tiny phone. You need some form of versatility.
There are a few ways to go when designing for multiple screen sizes. You could create strictly-controlled layouts for each common screen size on the market; you could make your site “responsive,” which means it adjusts on the fly to changes in browser size; or you could just go with one layout that does just OK on anything or choose to ignore certain platforms altogether.
Constellation can build your site under any of those terms, depending on your particular needs and budget.