1. Copy the 'Fonts' and CSS files into your website's CSS folder.
2. Link the CSS file in the <head> section of your website's source code. <head> ... <link rel="stylesheet" type="text/css" href="your_website_domain/css_root/flaticon.css"> ... </head>
Use icons on "display: inline" elements: Example: <i class="flaticon-workout"></i> or <span class="flaticon-workout"></span>