#articlesSubMenu .list-group-item:first-child {
    border-top-right-radius: 0px;
    border-top-left-radius: 0px;
}

#articlesSubMenu .list-group-item:last-child {
    margin-bottom: -1px;
    border-bottom-right-radius: 0px;
    border-bottom-left-radius: 0px;
}

.popover-body {
    font-size: .8125rem;
}