bootstrap icons glyphicons code example

Example 1: bootstrap glyphicons

<link rel="stylesheet" href="//netdna.bootstrapcdn.com/bootstrap/3.0.0/css/bootstrap-glyphicons.css">

Example 2: glyphicon cdn bootstrap 4

<link href="//maxcdn.bootstrapcdn.com/bootstrap/3.3.6/css/bootstrap.min.css" type="text/css" rel="stylesheet">

Example 3: glyphicon-user bootstrap 4

<button type="button" class="btn btn-default navbar-btn">Sign in</button>