The class attribute assigns one or more classnames to the <kbd> 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 <kbd> elements.
CTRL + C is used to copy content.
CTRL + X is used to cut content.
CTRL + V is used to paste content.
<style>
.kbd {padding: 2px 4px;color: white;
background-color: teal;border-radius: 3px;}
</style>
<p>
<kbd class="kbd">CTRL + C</kbd> is used to copy content.<br />
<kbd class="kbd">CTRL + X</kbd> is used to cut content.<br />
<kbd class="kbd">CTRL + V</kbd> is used to paste content.
</p>
Classes (i.e. classnames) are used for styling the kbd 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.
<kbd class="classnames">
| Value | Description |
|---|---|
| classnames | One or more space-separated class names. |
A class attribute styling a <kbd> element.
Clicking the button toggles a classname that changes the background color.
CTRL + X is used to cut content.
<style>
.teal-bg {padding: 2px 4px;color: white;
background-color: teal;border-radius: 3px;}
.indigo-bg {background-color: #4238ca;}
</style>
<p>
<kbd id="mykbd" class="teal-bg">CTRL + X</kbd> is used to cut content.
</p>
<br />
<button onclick="toggle();">Toggle class</button>
<script>
let toggle = () => {
let element = document.getElementById("mykbd");
element.classList.toggle("indigo-bg");
}
</script>
Three CSS classes are defined in the <style> element.
The class attribute in <kbd> assigns two of those.
Repeatedly clicking the button toggles another class, changing the background and text color of the element.
Here is when class support started for each browser:
 Chrome
|
1.0 | Sep 2008 |
 Firefox
|
1.0 | Sep 2002 |
 IE/Edge
|
1.0 | Aug 1995 |
 Opera
|
1.0 | Jan 2006 |
 Safari
|
1.0 | Jan 2003 |
Back to <kbd>
