demarches-normaliennes/app/assets/stylesheets/notifications.scss

span.notifications {
  position: absolute;
  width: 8px;
  height: 8px;
  border-radius: 4px;
  background-color: var(--background-flat-warning);
}

.fr-tabs__list span.notifications {
  z-index: 2;
  top: 5px;
  right: 8px;
}

.fr-nav {
  &__notifiable {
    position: relative;
  }

  .fr-nav__link + .notifications {
    top: 1rem;
    right: 0.25rem;
  }

  .fr-nav__btn .notifications {
    top: 0;
    right: -0.25rem;
  }
}