Because `transitionTime` is passed directly to the element CSS, the value should include the appropriate units
contentScroll: true,
/**
- * Amount of time in ms the open and close transition requires. If none selected, pulls from body style.
+ * Amount of time the open and close transition requires, including the appropriate milliseconds (`ms`) or seconds (`s) unit (e.g. `500ms`, `.75s`) If none selected, pulls from body style.
* @option
- * @type {number}
+ * @type {string}
* @default null
*/
transitionTime: null,