extends

{extends} tags are used in child templates in template inheritance for extending parent templates.

• The {extends} tag must be on the first line of the template.
• If a child template extends a parent template with the {extends} tag it may contain only {block} tags. Any other template content is ignored.

Attribute	Required	Default	Description
file	Yes	n/a	The name of the template file which is extended

see also Template inheritance(extending) and overriding and {block}