.gc-mailing-tooltip {
  position: fixed;
  z-index: 999999;
  transform: translate(-50%, -100%);
  max-width: 360px;
  background: #2f2f2f;
  color: #fff;
  font-size: 12px;
  line-height: 1.35;
  padding: 6px 9px;
  border-radius: 4px;
  white-space: normal;
  word-break: break-word;
  text-align: left;
  pointer-events: none;
  opacity: 0;
  transition: opacity 0.15s ease;
}

.gc-mailing-tooltip-below {
  transform: translate(-50%, 0);
}

.gc-mailing-tooltip-visible {
  opacity: 1;
}