#nav-icon {
    width: 28px;
    height: 16px;
    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: 2px;
    width: 100%;
    background-color: #fff;
    opacity: 0;
    right: -100%;
    -webkit-transform: rotate(0deg);
    -moz-transform: rotate(0deg);
    -o-transform: rotate(0deg);
    transform: rotate(0deg);
    -webkit-box-shadow: 0.2px 0.2px 0px 0.2px rgb(255 255 255 / 0%);
    -moz-box-shadow: 0.2px 0.2px 0px 0.2px rgba(255, 255, 255, 0);
    box-shadow: 0.2px 0.2px 0px 0.2px rgb(255 255 255 / 0%);
}

#nav-icon span:nth-child(1) {
    top: 0px;
    -webkit-transition: .25s ease-in-out;
    -moz-transition: .25s ease-in-out;
    -o-transition: .25s ease-in-out;
    transition: .25s ease-in-out;
}

#nav-icon span:nth-child(2) {
    top: 7px;
    -webkit-transition: .5s ease-in-out;
    -moz-transition: .5s ease-in-out;
    -o-transition: .5s ease-in-out;
    transition: .5s ease-in-out;
}

#nav-icon.open span {
    opacity: 1;
    right: 0;
}

.main-header-wrapper {
    position: relative;
}

.main-header-wrapper .menu-main {
    position: absolute;
    right: 15px;
}