Problem with tool tip

Problem with tool tip

Hi Geniuses! 
I have problems with "tool tip".

Project:


Function:

  1.  $(function() {
  2.     $( document ).tooltip({
  3.       position: {
  4.         my: "center bottom-20",
  5.         at: "center top",
  6.         using: function( position, feedback ) {
  7.           $( this ).css( position );
  8.           $( "<div>" )
  9.             .addClass( "arrow" )
  10.             .addClass( feedback.vertical )
  11.             .addClass( feedback.horizontal )
  12.             .appendTo( this );
  13.         }
  14.       }
  15.     });
  16.   });
How do I make it work?:   
  
  1. $(".rsFullscreenBtn").attr("title", "fullscreen");  

Idea:





hh



  
  
  
 js - archive external ("jquery.royalslider.min.js"):

  1. ... fullscreen.buttonFS&&(a._q5=c('<div class="rsFullscreenBtn"><div class="rsFullscreenIcn"></div></div>').appendTo(a.st.controlsInside?a._a1:a.slider).on("click.rs",function(){
  2. a.isFullscreen?a.exitFullscreen():a.enterFullscreen()
  3.