HTML <svg> class Attribute

The class attribute on a <svg> tag assigns one or more classnames to the scalable vector graphics element. Classes are used to style elements. Classnames are defined in a stylesheet or in a local <style> element.

Example

#

A class attribute styling a <svg> element.

<style>
  .svg-class { background:aliceblue;width:100px;height:100px; }
</style>

<svg class="svg-class">
  <circle cx="50" cy="50" r="40" stroke="steelblue" 
          stroke-width="2" fill="lightblue" />
</svg>

Using class

The class attribute assigns one or more classnames to the <svg> tag.

Multiple classnames are separated by a space.

Classes (i.e. classnames) are used for styling the svg element.

JavaScript uses classes to access one or more elements by classname.

Tip:  class is a global attribute that can be applied to any HTML element.


Syntax

<svg class="classnames">

Values

#

Value Description
classnames One or more space-separated class names.

More Examples

A class attribute styling a <svg> element.
Clicking the button toggles a classname that changes the background color.



<style>
  .bg-aliceblue { background: aliceblue; }
  .bg-steelblue { background: steelblue; }
</style>

<svg id="mysvg" class="bg-aliceblue" width="100" height="100">
  <circle cx="50" cy="50" r="40" stroke="steelblue" 
          stroke-width="2" fill="lightblue" />
</svg>

<br /><br />
<button onclick="toggle();">Toggle class</button>

<script>
  let toggle = () => {
     let element = document.getElementById("mysvg");
     element.classList.toggle("bg-steelblue");
  }
</script>

Code explanation

Two CSS classes are defined in the <style> element.

The class attribute in <svg> assigns one classname.

Repeatedly clicking the button toggles another class, changing the background color of the <svg>.


Browser support

Here is when class support started for each browser:

Chrome
4.0 Jan 2010
Firefox
3.0 Jun 2008
IE/Edge
9.0 Mar 2011
Opera
10.1 Jun 2010
Safari
3.2 Nov 2008

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