HTML <li> class Attribute

HTML <legend>

HTML <link>

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

Classnames are defined in a stylesheet or in a local <style> element.

Classes, i.e. classnames, are used to style elements.

Example

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A class attribute styling 3 <li> elements.

Designers
Developers
Managers

<style>
  .job-title { color:teal; padding:3px 0; margin:5px 0; font-style:italic; }
</style>

<ol>
  <li class="job-title ">Designers</li>
  <li class="job-title ">Developers</li>
  <li class="job-title ">Managers</li>
</ol>

Using class

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

Syntax

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<li class="classnames">

Values

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

More Examples

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A class attribute styling <li> elements.
Clicking the button toggles a classname that changes the background color for all items.

Designers
Developers
Managers

<style>
  .job-title { color:teal; padding:3px 0; margin:5px 0; font-style:italic; }
  .moccasin { background-color:moccasin; }
</style>

<ol>
  <li class="job-title ">Designers</li>
  <li class="job-title ">Developers</li>
  <li class="job-title ">Managers</li>
</ol>

<br />
<button onclick="toggle();">Toggle class</button>

<script>
  let toggle = () => {
    let elements = document.getElementsByClassName("job-title");
    [].forEach.call(elements, element => element.classList.toggle("moccasin"));
  }
</script>

Code explanation

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

Clicking the button retrieves all the <li> elements using the classname.

Javascript then iterates over the elements and toggle another classname changing the list item background color.

Browser support

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Here is when class support started for each browser: