CSS Tooltip triangle (подсказка с треугольничком внизу на CSS)

Tooltip triangle (подсказка с треугольничком внизу на CSS)

Sure, here's an example of CSS code that can display a tooltip block without using any images:

.tooltip {
  position: relative;
  display: inline-block;
  cursor: pointer;
}

.tooltip::before {
  content: "";
  position: absolute;
  z-index: 1;
  top: -5px;
  left: 50%;
  transform: translateX(-50%);
  border-width: 5px;
  border-style: solid;
  border-color: transparent transparent #000000 transparent;
}

.tooltip::after {
  content: attr(data-tooltip);
  position: absolute;
  z-index: 1;
  top: -30px;
  left: 50%;
  transform: translateX(-50%);
  background-color: #000000;
  color: #ffffff;
  padding: 5px;
  border-radius: 5px;
  font-size: 12px;
  white-space: nowrap;
  opacity: 0;
  transition: opacity 0.3s ease-in-out;
}

.tooltip:hover::after {
  opacity: 1;
}

To use this code, add a block element with the tooltip class and set its data-tooltip attribute to the text you want 
to display in the tooltip. For example:

<span class="tooltip" data-tooltip="This is a tooltip">Hover over me</span>

When you hover over the element with the tooltip class, the tooltip block will be displayed with the text from 
the data-tooltip attribute.