The fill attribute allows an author to specify that an element should be extended beyond the active duration by freezing the final state of the element.
Specifies that the element will not extend past the end of the last instance of the simple duration.
Specifies that the element will extend past the end of the last instance of the simple duration by "freezing" the element state at that point.
Setting this to "hold" has the same effect as setting to "freeze", except that the element is always frozen to extend to the end of the simple duration of the parent time container of the element (independent of the type of time container).
Specifies the number of iterations of the simple duration (Numeric value). When set to "indefinite" the element is defined to repeat indefinitely
Specifies the total duration for repeat (Clock value). When set to "indefinite" the element is defined to repeat indefinitely
This attribute specifies the target element to be animated.
Specifies the value for the target attribute during the active duration of the set element.