1. Copy the 'Fonts' folder and the CSS file into your website's CSS directory.
2. In your HTML <head>, link the CSS file: <head> ... <link rel="stylesheet" type="text/css" href="your-domain/css/flaticon.css"> ... </head>
3. Add the corresponding class to the element where you want the icon, e.g., <i class="flaticon-ranking"></i> or <span class="flaticon-ranking"></span>.