The first Mobile Framework that uses the actual features of #HTML5, #CSS3 and #JavaScript.
The main premise in Lungo is to create a semantic structure in the whole project, starting from the markup language HTML, through a well organized CSS< and ending with the JavaScript API
In the listed examples you are seeing a attribute "data-icon", this attribute only need the semantic name of the icon you want to show and LungoJS will do the rest of the work.