class

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Assigns a class name or set of class names to an element. You may assign the same class name or names to any number of elements. If you specify multiple class names, they must be separated by whitespace characters.

The class name of an element has two key roles:

As a style sheet selector, for use when an author wants to assign style information to a set of elements.
For general usage by the browser.

The class can be used to style SVG content using CSS.

Usage context

Categories	None
Value	<list-of-class-names>
Animatable	Yes
Normative document	SVG 1.1 (2nd Edition): The class attribute

List-of-`T`s

<list-of-Ts>

(Where T is some type.) A list consists of a separated sequence of values. Unless explicitly described differently, lists within SVG's XML attributes can be either comma-separated, with optional white space before or after the comma, or white space-separated.

White space in lists is defined as one or more of the following consecutive characters: "space" (U+0020), "tab" (U+0009), "line feed" (U+000A), "carriage return" (U+000D) and "form-feed" (U+000C).

The following is a template for an EBNF grammar describing the <list-of-Ts> syntax:

list-of-Ts ::= T
               | T, list-of-Ts

Within the SVG DOM, values of a <list-of-Ts> type are represented by an interface specific for the particular type T. For example, a <list-of-lengths> is represented in the SVG DOM using an SVGLengthList or SVGAnimatedLengthList object.

Example

<html>
    <body>
        <svg width="120" height="220"  
            viewPort="0 0 120 120" version="1.1" 
            xmlns="https://www.w3.org/2000/svg">

            <style type="text/css" >
                <![CDATA[
                    rect.rectClass {
                        stroke: #000066;
                        fill:   #00cc00;
                    }
                    circle.circleClass {
                        stroke: #006600;
                        fill:   #cc0000;
                    }
                ]]>
            </style>

            <rect class="rectClass" x="10" y="10" width="100" height="100"/>
            <circle  class="circleClass"   cx="40" cy="50" r="26"/>
        </svg>
    </body>
</html>

Elements

The following elements can use the class attribute:

Feature	Chrome	Firefox (Gecko)	Internet Explorer	Opera	Safari
Basic support	(Yes)	(Yes)	?	?	?
Animation support	?	5 (5)	?	?	?

Feature	Android	Firefox Mobile (Gecko)	IE Mobile	Opera Mobile	Safari Mobile
Basic support	?	?	?	?	?