html character code for twitter icon code example
Example: twitter icon html5
<!-- Add icon library -->
<link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/font-awesome/4.7.0/css/font-awesome.min.css">
<!-- Add font awesome icons -->
<a href="#" class="fa fa-facebook"></a>
<a href="#" class="fa fa-twitter"></a>