1. Copy the "Fonts" folder and the 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="your_website_domain/css_root/flaticon.css">
...
</head>
3. Use the icon classes on inline elements. For instance, <i class="flaticon-football"></i> or <span class="flaticon-football"></span> will display the football icon.