The class attribute assigns one or more classnames to the <hr> 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 <hr> element.
<style>
.separator {
height: 5px;
background: #6ad4d9;
margin: 20px 0;
box-shadow: 0px 0px 5px 2px rgba(204,204,204,1);
}
</style>
<article>First article goes here</article>
<hr class="separator">
<article>Second article goes here</article>
<hr class="separator">
Classes (i.e. classnames) are used for styling the hr 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.
<hr class="classnames">
| Value | Description |
|---|---|
| classnames | One or more space-separated class names. |
A class attribute styling a <hr> element.
Clicking the button toggles a classname that changes the background color.
<style>
.separator {height:5px; background:#6ad4d9; margin:20px 0;
box-shadow: 0px 0px 5px 2px rgba(204,204,204,1);
}
.separator-red { background: orangered; }
</style>
<article>
First article goes here
</article>
<hr id="myhr" class="separator">
<article>
Second article goes here
</article>
<br/>
<button onclick="toggle();">Toggle class</button>
<script>
let toggle = () => {
let element = document.getElementById("myhr");
element.classList.toggle("separator-red");
}
</script>
Two CSS classes are defined in the <style> element.
The class attribute assigns one classname to the <hr> element.
Repeatedly clicking the button toggles another class, changing the background color of the <hr>.
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 <hr>
