.#{$prefix}breadcrumb-btn .#{$prefix}box-target:first-child {
    margin: 0;
}

.#{$prefix}btn-split-right > .#{$prefix}btn-button:after {
    // hide the split border
    .#{$prefix}breadcrumb-btn > & {
        content: none;
    }

    // show the split border
    .#{$prefix}breadcrumb-btn.#{$prefix}btn-over > &,
    .#{$prefix}breadcrumb-btn.#{$prefix}btn-menu-active > & {
        content: '';
    }
}