---
title: <xsl:fallback>
slug: Web/XSLT/Element/fallback
tags:
  - Element
  - Reference
  - XSLT
  - 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.
