#nav-icon {
    width: 50px;
    height: 45px;
    position: relative;
    /* -webkit-transform: rotate(0deg);
    -moz-transform: rotate(0deg);
    -o-transform: rotate(0deg); */
    transform: rotate(0deg);
    /* -webkit-transition: .5s ease-in-out;
    -moz-transition: .5s ease-in-out;
    -o-transition: .5s ease-in-out; */
    transition: .5s ease-in-out;
    cursor: pointer;
}

#nav-icon span {
    display: block;
    position: absolute;
    height: 7px;
    width: 100%;
    background: #088527;
    border-radius: 7px;
    opacity: 1;
    left: 0;
    -webkit-transform: rotate(0deg);
    -moz-transform: rotate(0deg);
    -o-transform: rotate(0deg);
    transform: rotate(0deg);
    -webkit-transition: .25s ease-in-out;
    -moz-transition: .25s ease-in-out;
    -o-transition: .25s ease-in-out;
    transition: .25s ease-in-out;
}

/* Icon 3 */

#nav-icon span:nth-child(1) {
    top: 0px;
}

#nav-icon span:nth-child(2), #nav-icon span:nth-child(3) {
    top: 18px;
}

#nav-icon span:nth-child(4) {
    top: 36px;
}

#nav-icon.open span:nth-child(1) {
    top: 18px;
    width: 0%;
    left: 50%;
}

#nav-icon.open span:nth-child(2) {
    -webkit-transform: rotate(45deg);
    -moz-transform: rotate(45deg);
    -o-transform: rotate(45deg);
    transform: rotate(45deg);
}

#nav-icon.open span:nth-child(3) {
    -webkit-transform: rotate(-45deg);
    -moz-transform: rotate(-45deg);
    -o-transform: rotate(-45deg);
    transform: rotate(-45deg);
}

#nav-icon.open span:nth-child(4) {
    top: 18px;
    width: 0%;
    left: 50%;
}