"add Multiple class on click"
Bootstrap 4.1.1 Snippet by sunil8107

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<link href="//maxcdn.bootstrapcdn.com/bootstrap/4.1.1/css/bootstrap.min.css" rel="stylesheet" id="bootstrap-css">
<script src="//maxcdn.bootstrapcdn.com/bootstrap/4.1.1/js/bootstrap.min.js"></script>
<script src="//cdnjs.cloudflare.com/ajax/libs/jquery/3.2.1/jquery.min.js"></script>
<!------ Include the above in your HEAD tag ---------->
<script src="//cdnjs.cloudflare.com/ajax/libs/jquery/3.2.1/jquery.min.js"></script>
<!------ Include the above in your HEAD tag ---------->
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="utf-8">
<title>jQuery slide Left and Right Toggle Effect</title>
</head>
<body>
<div class="main_div">
<button type="button" class="btn">Button</button>
<hr>
<div class="box">
<h2>Lorem Ipsum dolor sit amet</h2>
</div></div>
</body>
</html>
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.main_div{text-align:center; padding:20px;}
.box{ background:#4795ff; padding:20px; color:#fff;}
.box.no_highlight{ background:#f2c011;}
.box.red_highlight{ background:#f28011;}
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$(document).ready(function(){
$('.btn').on('click', function(){
if($('.box').hasClass('no_highlight')){
$('.box').removeClass('no_highlight').addClass('red_highlight');
}else{
$('.box').addClass('no_highlight');
}
});
});
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