1. Copy the 'Fonts' folder and CSS file into your website's CSS directory.
2. Link the CSS file in the `<head>` section of your website: <head> ... <link rel="stylesheet" type="text/css" href="yourdomain.com/css/flaticon.css"> ... </head>
3. Apply icon class names to inline elements, for example: <i class="flaticon-whistle"></i> or <span class="flaticon-referee"></span>.