We turn designs into something that works in the browser and begin to sprinkle some code to power everything. This is also where we battle with browsers to ensure the site looks good across the board. In terms of testing we make sure to crush any bugs that may be lurking as we go - rather than waiting till the end of a project. We’ll also make sure that the site automatically knows what sort of device you’re using and adjusts itself accordingly, to save you and your users from zooming in and out to see all your content. A little information for the more technically minded (nerds) - we use PHP, MySQL, Javascript and HTML/CSS to build all our sites...the end result gets hosted on Linux servers.