.burger{position:relative;width:100%}.burger:after,.burger:before{content:"";display:block;width:40%;background-color:black;height:1px;margin:auto;position:relative;transition:all .3s}.burger:before{top:5px}.burger:after{top:-5px}.burgerActive:before{top:1px;transform:rotate(45deg)}.burgerActive:after{top:-1px;transform:rotate(-45deg)}