This schema definition defines common structure types for the Content Studio Schema. This schema is part of the base layer. Describes a span of content to present in a list format. Specifies the type of list to create. Describes an item within a list element. The content of the listItem element is treated as a unit. Indicates whether the list item, if selectable, is selected in a default rendering. Specifies content of elevated importance or otherwise that needs to be called out. The alert element is a single-level alert structure. Contains a collection of alert elements. An alertSet element can have one or more alert elements as children. Use the alertSet element for more than one alert item of the same type. For example, if a topic had three items for the notes section, an alertSet could be used to combine them. Specifies the type of alert. Describes the common lists that can be used to describe list data.