#mini-menu-toggle {
    
}

#mini-menu-toggle div.cross-part {
    width: 24px;
    height: 2px;
    background-color: #fff;
    position: absolute;
    left: 0;
    right: 0;
    margin: 0 auto;
}

#mini-menu-toggle div.cross-part:nth-child(1),
#mini-menu-toggle div.cross-part:nth-child(3) {
    transform: rotate(0deg);
    transform-origin: left;
}

#mini-menu-toggle div.cross-part:nth-child(1),
#mini-menu-toggle div.cross-part:nth-child(3),
#mini-menu-toggle[open] div.cross-part:nth-child(1),
#mini-menu-toggle[open] div.cross-part:nth-child(3) {
    transition: transform 0.3s ease-in-out;
}

#mini-menu-toggle div.cross-part:nth-child(2),
#mini-menu-toggle[open] div.cross-part:nth-child(2) {
    transition: width 0.3s ease-in-out;
}

#mini-menu-toggle div.cross-part:nth-child(1) {
    top: 0;
}

#mini-menu-toggle div.cross-part:nth-child(2) {
    top: 8px;
}

#mini-menu-toggle div.cross-part:nth-child(3) {
    bottom: 0;
}

#mini-menu-toggle[open] div.cross-part:nth-child(1) {
    transform: rotate(45deg);
    transform-origin: left;
    top: -1px;
}

#mini-menu-toggle[open] div.cross-part:nth-child(2) {
    width: 0;
}

#mini-menu-toggle[open] div.cross-part:nth-child(3) {
    transform: rotate(-45deg);
    transform-origin: left;
}