[data-ibt-tip] .tooltip {
  position: fixed;
  font-size: 16px;
  line-height: 20px;
  padding: 5px;
  background: white;
  border: 1px solid #ccc;
  visibility: hidden;
  box-shadow: -2px 2px 5px rgba(0, 0, 0, 0.2);
  opacity: 0;
  transition:
    opacity 0.3s,
    visibility 0s;
}

[data-ibt-tip]:hover .tooltip {
  visibility: visible;
  opacity: 1;
}