<span class="radikalwp-tooltip">ماوس را نگه دار<span class="radikalwp-tooltip-text">این یک تولتیپ آماده است!<//span><//span>

.radikalwp-tooltip {
  position: relative;
  display: inline-block;
  padding: 8px 16px;
  font-family: inherit;
  font-size: 14px;
  color: #334155;
  background: #fff;
  border: 1px dashed #94a3b8;
  border-radius: 8px;
  cursor: help;
}
.radikalwp-tooltip-text {
  position: absolute;
  bottom: calc(100% + 10px);
  right: 50%;
  transform: translateX(50%) translateY(6px);
  padding: 7px 14px;
  font-size: 12px;
  color: #fff;
  background: #1e293b;
  border-radius: 7px;
  white-space: nowrap;
  opacity: 0;
  pointer-events: none;
  transition: opacity .25s ease, transform .25s ease;
}
.radikalwp-tooltip-text::after {
  content: '';
  position: absolute;
  top: 100%;
  right: 50%;
  transform: translateX(50%);
  border: 6px solid transparent;
  border-top-color: #1e293b;
}
.radikalwp-tooltip:hover .radikalwp-tooltip-text,
.radikalwp-tooltip:focus .radikalwp-tooltip-text {
  opacity: 1;
  transform: translateX(50%) translateY(0);
}