The addClass() or removeClass() methods are used to add the CSS classes when there is a need to add to our webpage when there is some event listener or to create some kind of effect.
In this article, let us see how can we add a CSS class or remove a CSS class in jQuery.
Syntax:
Example: The following example adds a class that makes the background colour black when clicked on ADD CLASS button and also removes that added class when clicked on the REMOVE CLASS button.
HTML
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta http-equiv="X-UA-Compatible"
content="IE=edge">
<meta name="viewport" content=
"width=device-width, initial-scale=1.0">
<script src=
integrity=
"sha256-/xUj+3OJU5yExlq6GSYGSHk7tPXikynS7ogEvDej/m4="
crossorigin="anonymous">
</script>
<style>
h1 {
color: #006600;
}
button {
color: white;
background-color: #006600;
width: auto;
height: 30px;
}
body {
text-align: center;
}
div {
margin: 10px;
height: 150px;
width: 150px;
position: relative;
text-align: center;
display: flex;
left: 215px;
}
.bg-black {
background-color: black;
}
</style>
</head>
<body>
<h1>Geeks For Geeks</h1>
<button id="btnadd"> ADD CLASS </button>
<button id="btnremove"> REMOVE CLASS </button>
<div id="GFG_IMAGE">
<img src=
height='150px' width='150px'>
<img>
</div>
<script>
$(document).ready(function() {
$('#btnadd').click(function() {
$('img').addClass('bg-black');
});
$('#btnremove').click(function() {
$('img').removeClass('bg-black');
});
});
</script>
</body>
</html>
|
Output:
Add class and remove class
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Last Updated :
10 Aug, 2021
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