The available selector types represent a subset of the full
CSS standard, picking those features which are reasonably suited
in the context of the Laika document model. It includes type,
class and id selectors, but no attribute selectors as most
Laika tree elements primarily contain a sequence of children
and not many other properties to match against.
It also supports the CSS syntax to declare selectors for
child elements (e.g. Paragraph .intro) or immediate
children (e.g. Paragraph > .intro).
A predicate that holds if the given type name matches the type
of the target element. In contrast to web CSS, in Laika
this is not a tag name, but the (unqualified) name
of the class of the target element instance (e.g. Paragraph).
A predicate that holds if the given type name matches the type
of the target element. In contrast to web CSS, in Laika
this is not a tag name, but the (unqualified) name
of the class of the target element instance (e.g. Paragraph).