uk-icon-* class as shown in the example below. The icons behave just like text, you can change the colors and sizes in the Customizer stack.<i class="uk-icon-cog"></i><i class="uk-icon-user"></i><i class="uk-icon-home"></i>uk-icon-small, uk-icon-medium and uk-icon-large to make the icon bigger.<a href="#" class="uk-icon-github"></a><a href="#" class="uk-icon-small uk-icon-github"></a><a href="#" class="uk-icon-medium uk-icon-github"></a><a href="#" class="uk-icon-large uk-icon-github"></a>uk-icon-button class to create an icon button, which works perfectly for social icons.<a href="#" class="uk-icon-button uk-icon-github"></a><a href="#" class="uk-icon-button uk-icon-twitter"></a><a href="#" class="uk-icon-button uk-icon-dribbble"></a><a href="#" class="uk-icon-button uk-icon-pinterest"></a>uk-icon-spin class to create animated spin icons.<i class="uk-icon-spin uk-icon-spinner"></i><i class="uk-icon-spin uk-icon-refresh"></i>uk-icon-justify class. This is useful when using different icons in a list.<a href="#" class="uk-icon-justify uk-icon-github"></a><a href="#" class="uk-icon-justify uk-icon-bolt"></a><a href="#" class="uk-icon-justify uk-icon-folder"></a><a href="#" class="uk-icon-justify uk-icon-user"></a>.uk-icon-* classes provided by Font Awesome.