Line Trace
The dot rides the same path the line draws.
Usage
Meant for
Examples
On a Card
The series draws itself, the area fades up behind it, and a head runs along the line. The head's offset-path is the same path() as the line — the one thing CSS cannot copy for you. pathLength="1" makes one dash pair work for a path of any length.
The class is wm wm-line-trace — the first half is the marker the trigger and reduced-motion rules hook into, the second is the effect.