#nav-icon1 {
    width: 30px;
    height: 22.5px;
    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-icon1 span {
    display: block;
    position: absolute;
    height: 4.5px;
    width: 100%;
    background: #d3531a;
    border-radius: 4.5px;
    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;
}

#nav-icon1 span:nth-child(1) {
    top: 0px;
}

#nav-icon1 span:nth-child(2) {
    top: 9px;
}

#nav-icon1 span:nth-child(3) {
    top: 18px;
}

#nav-icon1.open span:nth-child(1) {
    top: 9px;
    -webkit-transform: rotate(135deg);
    -moz-transform: rotate(135deg);
    -o-transform: rotate(135deg);
    transform: rotate(135deg);
}

#nav-icon1.open span:nth-child(2) {
    opacity: 0;
    left: -30px;
}

#nav-icon1.open span:nth-child(3) {
    top: 9px;
    -webkit-transform: rotate(-135deg);
    -moz-transform: rotate(-135deg);
    -o-transform: rotate(-135deg);
    transform: rotate(-135deg);
}