Will make it easier to pre-define "modes". ``` if (obj.settings.cssClass) { tipso_bubble.addClass(obj.settings.cssClass); } ``` ``` <div data-tipso-cssClass="error" class="tipso" /> ``` ``` $('.tipso').tipso({ cssClass: 'error' }); ``` ``` .tipso_bubble.error { background: red; color: white; } .tipso_bubble.error .tipso_arrow { border-color: transparent transparent red; } ```