css get first code example

Example 1: css first h element

p:first-of-type {
  font-size: 1.25em;
}

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>