src/elements/Elt.dom.js
function(elt,_class){
		elt.classList.add.apply(elt.classList,_class.split(' '));
	}
function(elt,_class){
		elt.classList.add.apply(elt.classList,_class.split(' '));
	}
function ( elt , _class ) { elt . classList . add . apply ( elt . classList , _class . split ( ' ' ) ) ; }
Overrided in dom.js
Overrided in dom . js