font awesome not working code example

Example 1: cannot use font awesome in php mvc

<link href="https://maxcdn.bootstrapcdn.com/font-awesome/4.2.0/css/font-awesome.min.css" rel="stylesheet">

Example 2: font awesome icons not working

<i class="icon-camera-retro"></i>

Example 3: font awesome not working

Make sure you don't keep the name of all the font families by using this (*). If yes, you can remove the font-family property.

Example 4: fontawesome icons not working

<link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/font-awesome/5.14.0/css/all.min.css" integrity="sha512-1PKOgIY59xJ8Co8+NE6FZ+LOAZKjy+KY8iq0G4B3CyeY6wYHN3yt9PW0XpSriVlkMXe40PTKnXrLnZ9+fkDaog==" crossorigin="anonymous" />