1. Copy the 'Fonts' folder and the CSS file to your website's CSS directory.
2. Link the CSS file in your website's header section. <head> ... <link rel="stylesheet" type="text/css" href="your_website_domain/css_root/flaticon.css"> ... </head>
Add icon class names to the `class` attribute of your `<i>` or `<span>` tags for easy inline display. For instance: `<i class="flaticon-airplane49"></i>` or `<span class="flaticon-airplane49"></span>`.