I read this article because just last week I set up CSS height transitions to show/hide divs in a form which displays conditional content (based on radio button

I read this article because just last week I set up CSS height transitions to show/hide divs in a form which displays conditional content (based on radio button selection). "Why shouldn't I do this?", I thought. It looks like the point of this article is that you should avoid continuous animation for CPU performance reasons. These performance reasons are probably inconsequential for occasional transitions. For many of us in the target demographic of "people who animate height", the scary title of this article is misleading.