<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="utf-8">
<title>How to show Hide Elements By click on checkbox in Jquery </title>
<script src="https://code.jquery.com/jquery-1.12.4.min.js"></script>
<style type="text/css">
.box {
color: black;
display: none;
margin-top: 20px;
}
.check {
background: #ffffff;
}
</style>
</head>
<body>
<div>
<label><input type="checkbox" name="colorCheckbox" value="check"> Click on the check box</label>
</div>
<div class="check box">
<form method="post" action="" id="myfrm">
<fieldset>
<legend>Personal information:</legend>
First name:<br>
<input type="text" name="firstname">
<br> Last name:<br>
<input type="text" name="lastname">
<br><br>
<input type="submit" value="Submit">
</fieldset>
</form>
</div>
<script type="text/javascript">
$(document).ready(function() {
$('input[type="checkbox"]').click(function() {
var inputValue = $(this).attr("value");
$("." + inputValue).toggle();
});
});
</script>
</body>
</html>