Description

BeamToIX implements the animation direction in a similar way of the CSS animation-direction property.
Currently is supported: normal, reverse, alternate, alternate-reverse

The value is defined per property.
Both textual and numeric values are supported.

Use iterationCount to repeat the cycle.
To ensure that normal and reverse finish their cycles at the same time, the reverse repeats the same value at the beginning of the next cycle.

see: animate-loop.