.hamburger-icon{display:block;height:17px;position:relative;width:21px}.hamburger-icon span{border-radius:2px;display:block;height:2px;left:0;position:absolute;transition:all .3s;width:100%}.hamburger-icon span:first-child{transform:translateY(3px)}.hamburger-icon span:nth-child(2){transform:translateY(9px)}.hamburger-icon span:nth-child(3){transform:translateY(15px)}.hamburger-icon.open span:first-child{transform:translateY(9px) rotate(225deg)}.hamburger-icon.open span:nth-child(2){opacity:0;transform:translateY(9px) rotate(180deg)}.hamburger-icon.open span:nth-child(3){transform:translateY(9px) rotate(135deg)}