first div after css code example

Example 1: first div after css

span[data-descr] {
  position: relative;
  text-decoration: underline;
  color: #00F;
  cursor: help;
}

span[data-descr]:hover::after,
span[data-descr]:focus::after {
  content: attr(data-descr);
  position: absolute;
  left: 0;
  top: 24px;
  min-width: 200px;
  border: 1px #aaaaaa solid;
  border-radius: 10px;
  background-color: #ffffcc;
  padding: 12px;
  color: #000000;
  font-size: 14px;
  z-index: 1;
}

Example 2: first div after css

<p>Here we have some
  <span tabindex="0" data-descr="collection of words and punctuation">text</span> with a few
  <span tabindex="0" data-descr="small popups that appear when hovering">tooltips</span>.
</p>

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Html Example