The class attribute assigns one or more classnames to the <svg> tag.
Classnames are defined in a stylesheet or in a local <style> element.
Classes, i.e. classnames, are used to style elements.
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>
Classes (i.e. classnames) are used for styling the svg element.
Multiple classnames are separated by a space.
JavaScript uses classes to access elements by classname.
Tip: class is a global attribute that can be applied to any HTML element.
<svg class="classnames">
| Value | Description |
|---|---|
| classnames | One or more space-separated class names. |
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>
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>.
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 |
Back to <svg>
