nav.navbar {
    /*<20211011(小暮)_色変更(var(--base-color)⇒whitesmoke)>*/
    /*border-bottom: solid 2px var(--base-color);*/
    border-bottom: solid 2px whitesmoke;
}

nav li.nav-item {
    padding: .5rem;
    /*<20211011(小暮)_色変更(var(--base-color)⇒whitesmoke)>*/
    /*border-left: solid 2px var(--base-color);*/
    border-left: solid 2px whitesmoke;
    /*<20211011(小暮)_color変更(white⇒dimgray)>*/
    /*color: white;*/
    color: dimgray;
}

    nav li.nav-item > a {
        /*<20211011(小暮)_color変更(white⇒dimgray)>*/
        /*color: white;*/
        color: dimgray;
    }