Make each navigation option text a different color

To make each navigation option text a different color, you can follow this.
#1. First, you need to know this

#2. Next, use this code to Custom CSS box

div.header-nav-item:nth-child(1)>a,  div.container.header-menu-nav-item:nth-child(1) * {
    color: green !important;
}
div.header-nav-item:nth-child(2)>a, div.container.header-menu-nav-item:nth-child(2) * {
    color: red !important;
}
div.header-nav-item:nth-child(3)>a,  div.container.header-menu-nav-item:nth-child(3) * {
    color: #f1f !important;
}
div.header-nav-item:nth-child(4)>a,  div.container.header-menu-nav-item:nth-child(4) * {
    color: brown !important;
}
div.header-nav-item:nth-child(5)>a,  div.container.header-menu-nav-item:nth-child(5) * {
    color: #fff !important;
}

Result

#3. With Dropdown Items, use CSS code like this

div.header-nav-item:nth-child(5)>div>div:nth-child(1) * {
    color: red;
}
div.header-nav-item:nth-child(5)>div>div:nth-child(2) * {
    color: green;
}
div.header-nav-item:nth-child(5)>div>div:nth-child(3) * {
    color: white;
}
div.header-nav-item:nth-child(5)>div>div:nth-child(4) * {
    color: black;
}
div.header-nav-item:nth-child(5)>div>div:nth-child(5) * {
    color: brown;
}