How to select only first three elements using CSS

问题

How can I select only first three elements with the :nth-child() selector?

section > figure:nth-child( ? ) {
  /* ... */
}

<section>
  <figure>1</figure> <!-- select this -->
  <figure>2</figure> <!-- and this -->
  <figure>3</figure> <!-- and this -->
  <figure>4</figure>
  <figure>5</figure>
  <figure>6</figure>
</section>

回答1:

You can do it like this:

section > figure:nth-child(-n+3) {
  border: 1px solid;
}

<section>
  <figure>1</figure>
  <figure>2</figure>
  <figure>3</figure>
  <figure>4</figure>
  <figure>5</figure>
  <figure>6</figure>
</section>

来源：https://stackoverflow.com/questions/50406795/how-to-select-only-first-three-elements-using-css