I'm using firefox 50.1.0 when I add fadeout or fadein jquery functions the twitter share button doesn't show up. The iframe is getting loaded but the button is not showing up. The button works fine in all browsers except FIREFOX. This my fiddle https://jsfiddle.net/trvh8r12/
<!DOCTYPE html>
<html >
<head>
<meta charset="utf-8">
<meta http-equiv="x-ua-compatible" content="ie=edge">
<meta name="viewport" content="width=device-width, initial-scale=1, user-scalable=no">
</head>
<body>
<div class="container" id="form-puzzle">
<div class="col-md-12 text-align">
<button class="btn btn-success btn-md btn-margin" type="submit" id="btn-submit">Submit</button>
</div>
</div>
<div class="container" id="message-id">
<div class="row">
<div class="col-md-12 text-center message-color">
<h1>Congrats !!!!!....</h1>
</div>
<div class="col-md-12 text-align" style="display:block !important;">
<div class="gap"></div>
<a href="https://twitter.com/share" class="twitter-share-button btn-icon" data-text=" "
data-show-count="false"><i class="btn-icon"></i></a><script async src="//platform.twitter.com/widgets.js" charset="utf-8"></script>
</div>
</div>
</div>
<script src='http://cdnjs.cloudflare.com/ajax/libs/jquery/2.1.3/jquery.min.js'></script>
<script>
$(document).ready(function(){
$('#message-id').hide();
$('#btn-submit').click(function(){
$('#message-id').fadeIn(2000);
$('#form-puzzle').fadeOut(2000);
});
});
</script>
</body>
</html>