<link href="//maxcdn.bootstrapcdn.com/bootstrap/3.3.0/css/bootstrap.min.css" rel="stylesheet" id="bootstrap-css"> <script src="//maxcdn.bootstrapcdn.com/bootstrap/3.3.0/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 ----------> <div class="container"> <div class="row"> <div class="btn-group " data-toggle="buttons"> <label class="btn btn-primary ">   </label> <label class="btn btn-primary "> <input type="checkbox" checked>  <span class="fa fa-check"></span> </label> </div> </div> </div>

.btn span.fa-check { opacity: 0; } .btn.active span.fa-check { opacity: 1; }