jQuery removeClass() remove three classes

Introduction

Remove the "head", "intro" and "main" class from the selected elements

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<!DOCTYPE html>
<html>
<head>
<script 
 src="https://ajax.googleapis.com/ajax/libs/jquery/3.4.1/jquery.min.js">
</script>/* ww w  . j  a va2 s . c om*/
<script>
$(document).ready(function(){
  $("button").click(function(){
    $("p, h1").removeClass("head intro main");
  });
});
</script>
<style>
.head {
  font-size: 2em;
  color: green;
}

.intro {
  font-size: 120%;
  color: red;
}

.main {
  font-size: 20px;
  color: blue;
}
</style>
</head>
<body>

<h1 class="head">This is a heading</h1>

<p class="intro">This is a paragraph.</p>
<p class="main">This is another paragraph.</p>

<button>test</button>

</body>
</html>



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