The class and id attributes can be used as style sheet selectors, allowing you to assign style information to a set of elements. The id attribute can also be used to indicate a link target.
All XDIME elements with the exception of otherwise may have an expr attribute. Its use on the select and when elements is described separately in those contexts.
| Attribute | Description | Type | Default | Options | Use |
|---|---|---|---|---|---|
| class | Assigns a class name to an element. | xs:NMTOKEN | none | optional | |
| expr | Contains an MCS expression. If it evaluates to 'true' the element is processed, otherwise the element and its children are skipped and processing continues at the next element. | xs:string | none | optional | |
| id | Assigns an identifier to an element. | xs:ID | none | optional | |
| title | Information about the element. Visual browsers usually display the title on the mouseover event. | xs:string | none | optional |