index.md

---

title: <xsl:fallback>
slug: Web/XSLT/Element/fallback

---

{{ XsltRef() }}

The <xsl:fallback> element specifies what template to use if a given extension (or, eventually, newer version) element is not supported.

Syntax

<xsl:fallback>
  TEMPLATE
</xsl:fallback>

Required Attributes

None.

Optional Attributes

None.

Type

Instruction, appears within a template.

Defined

XSLT, section 15

Gecko support

Not supported at this time.