Time units are used with Aural CSS
properties to indicate when and how long actions and durations will
occur. Time lengths are given as a number followed by a time unit.
Values cannot be negative.
Time Units in CSS
s
[CSS2|CSS2.1]
Description: Seconds. Basic unit of time measure.
ms
[CSS2|CSS2.1]
Description: Milliseconds. 1 Second = One
thousand Milliseconds.