.fat-nav,
.hamburger__icon,
.hamburger__icon:after,
.hamburger__icon:before { 
    -moz-transition-duration:.4s;
    -o-transition-duration:.4s;
    -webkit-transition-duration:.4s;
}
.hamburger {
    display:block;
    width:50px;
    height:50px;
    position:fixed;
    top:0;
    right: 0;
    z-index:10000;
    padding:12px;
    -moz-box-sizing:border-box;
    -webkit-box-sizing:border-box;
    box-sizing:border-box;
    -webkit-tap-highlight-color:transparent;
    -ms-touch-action:manipulation;
    touch-action:manipulation
} 
.hamburger__icon {
    display: block;
    position:relative;
    margin-top:7px;
    margin-bottom:7px 
}
.hamburger__icon,
.hamburger__icon:after,.hamburger__icon:before{display:block;width:25px;height:2px;background-color:#fff;-moz-transition-property:background-color,-moz-transform;-o-transition-property:background-color,-o-transform;-webkit-transition-property:background-color,-webkit-transform;transition-property:background-color,transform;transition-duration:.4s}.hamburger__icon:after,.hamburger__icon:before{position:absolute;content:""}.hamburger__icon:before{top:-7px}.hamburger__icon:after{top:7px}.hamburger.active .hamburger__icon{background-color:transparent}.hamburger.active .hamburger__icon:after,.hamburger.active .hamburger__icon:before{background-color:#fff}.hamburger.active .hamburger__icon:before{-moz-transform:translateY(7px)rotate(45deg);-ms-transform:translateY(7px)rotate(45deg);-webkit-transform:translateY(7px)rotate(45deg);transform:translateY(7px)rotate(45deg)}.hamburger.active .hamburger__icon:after{-moz-transform:translateY(-7px)rotate(-45deg);-ms-transform:translateY(-7px)rotate(-45deg);-webkit-transform:translateY(-7px)rotate(-45deg);transform:translateY(-7px)rotate(-45deg)}.fat-nav{top:0;left:0;z-index:9999;position:fixed;display:none;width:100%;height:100%;background:rgba(0,0,0,.8);-moz-transform:scale(1.4);-ms-transform:scale(1.4);-webkit-transform:scale(1.4);transform:scale(1.4);-moz-transition-property:-moz-transform;-o-transition-property:-o-transform;-webkit-transition-property:-webkit-transform;transition-property:transform;transition-duration:.4s;overflow-y:auto;overflow-x:hidden;-webkit-overflow-scrolling:touch}.fat-nav__wrapper{width:100%;height:100%;display:table;table-layout:fixed}.fat-nav.active{-moz-transform:scale(1);-ms-transform:scale(1);-webkit-transform:scale(1);transform:scale(1)}.fat-nav ul{display:table-cell;vertical-align:middle;margin:0;padding:0}.fat-nav li{list-style-type:none;text-align:center;padding:10px;font-size:2em}.fat-nav li,.fat-nav li a{color:#fff}.fat-nav li a{text-decoration:none}