Bad webmaster, no cookie. Your CSS is having a panic attack!

Code is a fickle beast, not least because it relies on you to tell it exactly what to do and when. If you get the “what” but miss the “when” part in a carousel, this is what happens:

CSS carousel error

As you might be able to tell, the above carousel intended to present at least four slides – but since the code isn’t describing the desired order, you get everything all at once.