It would be great to have a class that incrementally increases the delay of child elements. This is useful in a repeater for example, where all the children have the same classes, but I would like to display them sequentially.
It will therefore probably be necessary to have precomputed selectors for a certain number of elements, but I think in practice there won't be more than, say, 20 anyway:
.dynamic_delay:nth-child(1) { animation-delay: 0.2;}
.dynamic_delay:nth-child(2) {animation-delay: 0.4;}
.dynamic_delay:nth-child(3) { animation-delay: 0.6;}
.dynamic_delay:nth-child(4) { animation-delay: 0.8;}
.dynamic_delay:nth-child(5) { animation-delay: 1.0;}
This could be further improved by using, for example, calc() from some base variable.