Definitions for "Start tag"
Keywords:  syntax, tag, xml, element, attributes
The opening tag of an element. It follows the syntax: name, and must match the name in the end tag to be well-formed XML.
The opening tag that begins an element. The general syntax for a start tag is Name attributes, where Name is the name of the element being defined, and attributes is a set of name-value pairs. All start tags in XML must either have end tags or use empty element syntax, Name attributes/.
see open tag.
an example of the kind of structure for which handlers can be registered
an example of the kind of structures for which you may register a handler script