<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>
<!DOCTYPE html>
<html lang="en" >
<head>
<meta charset="UTF-8">
<title>Mobile Radio Buttons with extended field</title>
<meta name="viewport" content="width=device-width, initial-scale=1">
<link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/normalize/5.0.0/normalize.min.css">
<style>
body {
position: relative;
height: 100%;
height: 100vh;
background: #fff5f6;
display: flex;
align-items: center;
justify-content: center;
}
form {
max-width: 250px;
position: relative;
margin: 0 auto;
font-size: 15px;
}
.radiobtn {
position: relative;
display: block;
}
.radiobtn .extended {
