Шаблон:Tooltip/styles.css

.tooltip {
  position: relative;
  cursor: pointer;
}

.tooltiptext {
  position: absolute;
  display: block;
  z-index: 2;
  width: 250px;
  padding: 10px;
  visibility: hidden;
  opacity: 0;
  white-space: normal;
  text-align: left;
  transition: all 0.2s;
  border: 1px solid #aaa;
  background-color: #005069;
  border-radius: 8px;
  transition-delay: 0.2s;
  color: #fcfcfc;
}

.tooltip:hover > .tooltiptext{
  visibility: visible;
  opacity: 1;
  transition-delay: 0.1s;
}