*[data-popup] {
  position: relative;
}

*[data-popup]::before,
*[data-popup]::after {
  display: none;
  transition: opacity 1s,
}

*[data-popup]:hover::before,
*[data-popup]:hover::after {
  display: inherit;
}

*[data-popup]::before {
  position: absolute;
  content: '';
  width: 0;
  height: 0;
  top: -10px;
  left: 50%;
  transform: translate(-50%);
  border-left: 5px solid transparent;
  border-right: 5px solid transparent;
  border-top: 5px solid rgba(0, 0, 0, 0.6);
}

*[data-popup]::after {
  position: absolute;
  max-width: 200px;
  top: -32px;
  left: 50%;
  height: 22px;
  transform: translateX(-50%);
  content: attr(data-popup);
  color: white;
  line-height: 22px;
  font-size: 13px;
  white-space: nowrap;
  background-color: rgba(0, 0, 0, 0.6);
  padding: 0 8px;
  border-radius: 2px;
}