gistfile1.txt

 videoControlContainer.on( 'click', function() {
	if (bubblesVideo.prop('muted') == true) {	
	    console.log("clicked the control");
	    bubblesVideo.prop('muted', false) ;
	    videoControlContainer.css('background-position', '')
	    .css('background-position-y', '0') ;
	} else if (bubblesVideo.prop('muted') == false) {	 
	    console.log("clicked the control");
	    bubblesVideo.prop('muted', true) ;
	    videoControlContainer.css('background-position', '')
	    .css('background-position-y', '-52px') ;
	} else {
	    console.log("you messed up your conditions");
	}
    });