#mainNav{transition:all 0.3s ease;position:fixed;width:0%;top:0;left:-100%;background:url(../images/navOverlay.png);height:100%;z-index:999;overflow:auto;}
#mainNav_wrap{width:84%;height:100%;background:#9b1d17;position:relative;}
#mainNav.open{left:0;width:100%;display:block;}
#open.open{left:100%;}