<use>

href

The URL to an element/fragment that needs to be duplicated. See Usage notes for details on common pitfalls.
Value type: <URL>; Default value: none; Animatable: yes

xlink:href Deprecated

An <IRI> reference to an element/fragment that needs to be duplicated. If both href and xlink:href are present, the value given by href is used.
Value type: <IRI>; Default value: none; Animatable: yes

Warning: Since SVG 2, the xlink:href attribute is deprecated in favor of href. See xlink:href page for more information.

x

The x coordinate of an additional final offset transformation applied to the <use> element.
Value type: <coordinate>; Default value: 0; Animatable: yes

y

The y coordinate of an additional final offset transformation applied to the <use> element.
Value type: <coordinate>; Default value: 0; Animatable: yes

width

The width of the <use> element.
Value type: <length>; Default value: 0; Animatable: yes

height

The height of the <use> element.
Value type: <length>; Default value: 0; Animatable: yes

This element implements the SVGUseElement interface.

The following example shows how to use the <use> element to draw a circle with a different fill and stroke color. In the last circle, stroke="red" will be ignored because stroke was already set on myCircle.

html,
body,
svg {
  height: 100%;
}

<svg viewBox="0 0 30 10" xmlns="http://www.w3.org/2000/svg">
  <circle id="myCircle" cx="5" cy="5" r="4" stroke="blue" />
  <use href="#myCircle" x="10" fill="blue" />
  <use href="#myCircle" x="20" fill="white" stroke="red" />
</svg>

Most attributes on <use> are ignored if the corresponding attribute is already defined on the element referenced by <use>. (This differs from how CSS style attributes override those set 'earlier' in the cascade). Only the attributes x, y, width, height and href on the <use> element will or may have some effect, described later, if the referenced element has already defined the corresponding attribute. However, any other attributes not set on the referenced element will be applied to the <use> element.

Since the cloned nodes are not exposed, care must be taken when using CSS to style a <use> element and its cloned descendants. CSS properties are not guaranteed to be inherited by the cloned DOM unless you explicitly request them using CSS inheritance.

For security reasons, browsers may apply the same-origin policy on <use> elements and may refuse to load a cross-origin URL in the href attribute. There is currently no defined way to set a cross-origin policy for <use> elements.

You can load nodes from an external SVG file via the <use> element by specifying the path of the file followed by a URL fragment pointing to the id of the node to load:

<svg>
  <use href="../assets/my-svg.svg#my-fragment"></use>
</svg>

Historically, the URL fragment was always required, even if you just wanted to load the entire SVG document. In such a case, the id would be included on the SVG root element:

<svg xmlns="http://www.w3.org/2000/svg" id="my-fragment">
  <circle cx="150" cy="100" r="80" fill="green" />
</svg>

However, modern implementations have been updated so that if you want to load the entire external document, you can refer to it without a URL fragment (and the id is no longer needed on the SVG document root element):

<svg>
  <use href="../assets/my-svg.svg"></use>
</svg>

Check the Browser compatibility table for browser support.

Loading resources with data URIs in the href attribute is deprecated for security reasons. This applies to <use href="data:... and also when setting href by using the set or setAttribute method.

Again, check the Browser compatibility table for browser support.