<!DOCTYPE html>
<html lang="en">
<head>
<title>Bootstrap Example</title>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1">
<link rel="stylesheet" href="https://cdn.jsdelivr.net/npm/bootstrap@4.6.2/dist/css/bootstrap.min.css">
<script src="https://cdn.jsdelivr.net/npm/jquery@3.7.1/dist/jquery.slim.min.js"></script>
<script src="https://cdn.jsdelivr.net/npm/popper.js@1.16.1/dist/umd/popper.min.js"></script>
<script src="https://cdn.jsdelivr.net/npm/bootstrap@4.6.2/dist/js/bootstrap.bundle.min.js"></script>
</head>
<body>
<div class="container mt-3">
<h2>Custom Checkbox</h2>
<p>To create a custom checkbox, wrap a container element, like div, with a class of .custom-control and .custom-checkbox around the checkbox. Then add the .custom-control-input to the checkbox.</p>
<p><strong>Tip:</strong> If you use labels for accompanying text, add the .custom-control-label class to it. Note that the value of the for attribute should match the id of the checkbox:</p>
<form action="/action_page.php">
<div class="custom-control custom-checkbox mb-3">
<input type="checkbox" class="custom-control-input" id="customCheck" name="example1">
<label class="custom-control-label" for="customCheck">Custom checkbox</label>
</div>
<input type="checkbox" id="defaultCheck" name="example2">
<label for="defaultCheck">Default checkbox</label>
<br>