.atp-tooltip {
  position: relative;
  cursor: help;
  text-decoration: var(--atp-underline, underline dotted #333);
}

.atp-tooltip::after {
  content: attr(data-tooltip);
  position: absolute;
  left: 0;
  bottom: 125%;
  background: var(--atp-tooltip-bg, #333);
  color: var(--atp-tooltip-color, #fff);
  padding: 5px 8px;
  border-radius: var(--atp-tooltip-radius, 4px);
  white-space: nowrap;
  opacity: 0;
  transform: translateY(5px);
  transition: opacity var(--atp-tooltip-speed, 0.2s), transform var(--atp-tooltip-speed, 0.2s);
  pointer-events: none;
  z-index: 9999;
  font-size: var(--atp-tooltip-font-size, inherit);
  max-width: var(--atp-tooltip-max-width, none);
}

.atp-tooltip:hover::after {
  opacity: 1;
  transform: translateY(0);
}