The animation-duration CSS property sets the length of time that an animation takes to complete one cycle.
Ref.: https://developer.mozilla.org/en-US/docs/Web/CSS/animation-duration
time : List.Nonempty.Nonempty CSS.Types.Time.Time -> CSS.Internal.Property
The time that an animation takes to complete one cycle. This may be specified in either seconds (s) or milliseconds (ms). The value must be positive or zero and the unit is required. A value of 0s, which is the default value, indicates that no animation should occur.
inherit : CSS.Internal.Property
The inherit CSS keyword causes the element to take the computed value of the property from its parent element.
Ref.: https://developer.mozilla.org/en-US/docs/Web/CSS/inherit
initial : CSS.Internal.Property
The initial CSS keyword applies the initial (or default) value of a property to an element.
Ref.: https://developer.mozilla.org/en-US/docs/Web/CSS/initial
revert : CSS.Internal.Property
The revert CSS keyword reverts the cascaded value of the property from its current value to the value the property would have had if no changes had been made by the current style origin to the current element.
Ref.: https://developer.mozilla.org/en-US/docs/Web/CSS/revert
revertLayer : CSS.Internal.Property
The revert-layer CSS keyword rolls back the value of a property in a cascade layer to the value of the property in a CSS rule matching the element in a previous cascade layer.
Ref.: https://developer.mozilla.org/en-US/docs/Web/CSS/revert-layer
unset : CSS.Internal.Property
The unset CSS keyword resets a property to its inherited value if the property naturally inherits from its parent, and to its initial value if not.
Ref.: https://developer.mozilla.org/en-US/docs/Web/CSS/unset