So you have unit tests, integration tests, and maybe even frontend tests, and you know that your web application does what it is supposed to do. But what about layout bugs? How do you ensure, that every page looks like the designers wanted it to look like? I will present several proven and some novel techniques to help you automatically check the work of your HTML and CSS programmers. I will show examples of typical layout bugs and explain which techniques can be applied to automatically detect/prevent those types of bugs in the future without human intervention.
