It used to be that designers designed and coders coded. There was no crossover, and that’s the way it was. But with the advent of CSS transitions and animations, those lines are blurring a bit. It’s no longer as simple as the designer dictating the design and the coder transcribing—designers must now know something about code, and coders must know something about design in order to effectively collaborate.
As an example, let’s say a designer asks a developer to make a box bounce. That’s it—no additional instruction. Without some cross-knowledge and a common vocabulary, both sides are a little lost in this communication: the developer doesn’t have enough information to fully realize the designer’s vision, but the designer doesn’t really know what the options are and how to communicate them. With a very basic interpretation, you might end up with something that looks like this:
... read the whole story at css-tricks.com.