<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> <!------ Include the above in your HEAD tag ----------> <div class="container"> <div class="row"> <h2 class="add">This heading in Mozilla Green color and you can see it in Chrome Red color by css</h2> </div> </div>

@media screen and (-webkit-min-device-pixel-ratio:0) { .add {color:#f33;} } @-moz-document url-prefix() { .add {color:green;} }