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Something I run into quite a lot as I build animations, is that animation-delay doesn't persist throughout iterations. Take the following code: div { animation: unicorns linear infinite forwards 5s 3s; } On the first iteration it would wait 3 seconds before it starts, then it plays for 5 seconds. On consecutive plays it will loop the 5 second part but skip the delay. This is certainly useful in certain cases, but there are also cases where you want the delay to persist; kind of like `animation-fill-mode: forwards;`. I propose a second argument for the `animation-delay` property: repeat. div { animation-delay: 3s repeat; } This will ensure that the delay is accounted for on consecutive iterations. Alternatives to the repeat keyword are welcome, simply chose it because it is already in CSS vocabulary.