Glyphicons Dont Show in WordPress Plugin Only

Hello

I have a very simple WordPress plugin that shows a menu/admin page. The page contains Glyphicons – Font Awesome.

These glyphicons are never showing. I cannot figure out why because I know the font-awesome css file is being loaded correctly and I know that the admin pages HTML works fine outside of a wordpress plugin and shows the Glyphs.

What could possibly be going wrong?

<?php
/**
*  Plugin Name: TEST Use FA Icons
*  Plugin URI:
*  Description: Test Development Plugin
*  Version: 1.0.0
*  Author:
*  Author URI:
*  License: GPL2
*/ 

class TEST_Use_FA_Icons_Admin
{

	public function __construct() {
		add_action('admin_menu', array($this, 'admin_menu'));
	}

	public function admin_menu() {

		wp_enqueue_style( "font-awesome", plugin_dir_url( __FILE__ ) . 'css/font-awesome.min.css', array(), false, 'all' );

		add_menu_page('TEST_DEV', 'TEST_DEV', 'administrator', 'TEST_DEV_SLUG',
					array($this, 'show_TEST_page'),
					plugins_url('images/help.png', __FILE__));
	}

	public function show_TEST_page() {
		?>
		<div class="wrap">
			<div class="container">
				<div class="col-md-12">
						<h1>Test</h1>

						<i class="fa fa-camera-retro fa-lg"></i> fa-lg
						<i class="fa fa-camera-retro fa-2x"></i> fa-2x
						<i class="fa fa-camera-retro fa-3x"></i> fa-3x
						<i class="fa fa-camera-retro fa-4x"></i> fa-4x
						<i class="fa fa-camera-retro fa-5x"></i> fa-5x
				</div>
			</div>
		</div>
		<?php
	}
}

$test_TEST_Use_FA_Icons_Admin_admin = new TEST_Use_FA_Icons_Admin();

?>