===== The Element ===== ==== Definition and Usage ==== The [[transitionbase|]] element groups a set of [[transition|]] elements, each of which defines a transition effect on [[media|]] elements in presentation. ==== Syntax ==== ^ Element ^ Attributes ^ Content ^ Parent ^ | [[transitionbase|]] | //id// | ([[importbase|]],[[transition|]])+ | [[head|]] | ==== Attributes ==== ^ Name ^ Value ^ Description ^ | //id// | It may receive any string value that begins with a letter or an underscore and that only contains letters, digits, <".">, and <"_">. | The //id// attribute uniquely identifies the element within a document. |