SVG use Element

Jakob Jenkov
Last update: 2014-06-15

The SVG <use> element can reuse an SVG shape from elsewhere in the SVG document, including <g> elements and <symbol> elements. The reused shape can be defined inside the <defs> element (which makes the shape invisible until used) or outside.

A use Example

Here is a simple example of the <use> element:

    <g id="shape">
        <rect x="50" y="50" width="50" height="50" />
        <circle cx="50" cy="50" r="50" />

  <use xlink:href="#shape" x="50" y="50" />
  <use xlink:href="#shape" x="200" y="50" />


This example shows a <g> element defined inside a <defs> element. This makes the <g> invisible unless referenced by a <use> element.

Before the <g> element can be referenced, it must have an ID set on it via its id attribute. The <use> element references the <g> element via its xlink:href attribute. Notice the # in front of the ID in the attribute value.

The <use> element specifies where to show the reused shapes via its x and y attributes. Notice that the shapes inside the <g> element are located at 0,0. That is done because their position is added to the position specified in the <use> element.

Here is the resulting image:

The blue dots are not part of the example. They are added to show the x and y of the two <use> elements.

Using Shapes Outside of a defs Element

The <use> element can reuse elements from anywhere in an SVG image as long as that shape has an id attribute with a unique value. Here is an example:

<svg width="500" height="110">

    <g id="shape2">
        <rect x="0" y="0" width="50" height="50" />

    <use xlink:href="#shape2" x="200" y="50" />


This example defines a <g> element with a <rect> element inside. Then it reuses the <g> element (including the nested <rect> element) via a <use> element.

Here is the resulting image:

Notice that both the original shape and its reused version are shown. That is happening because the shape that is reused (the <g> element) is not defined inside the <defs> element or <symbol> element. Therefore it is visible.

Again, the blue dot shows the coordinates of the <use> element.

Setting CSS Styles

You can set the CSS styles when reusing a shape, if the original shape has no CSS style set on it. You simply specify the styles to set inside the style attribute of the <use> element. Here is an example:

<svg width="500" height="110">

  <g id="shape3">
      <rect x="0" y="0" width="50" height="50" />

  <use xlink:href="#shape3" x="100" y="50" style="fill: #00ff00;"/>
  <use xlink:href="#shape3" x="200" y="50" style="stroke: #00ff00; fill: none;"/>


Notice how the original shape has no style attribute set on it. It will then be rendered with default styles (typically black).

Jakob Jenkov

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