You have some kind of test suite for your web app, so you know the features work. But does it look right? You fire up half a dozen virtual machines and open your drawer with five different mobile devices in it to check it out. The lack of automation in that is embarrassing.
Some people say that you can't test HTML/CSS. I'd like to show you the opposite. You can automate testing visual layout, refactor your CSS with confidence and get rid of this pain.
You understand why. Let's talk about how.