:first-child Selector

first-child selector

Description: Selects all elements that are the first child of their parent.

  • version added: 1.1.4jQuery( ":first-child" )

While .first() matches only a single element, the :first-child selector can match more than one: one for each parent. This is equivalent to :nth-child(1).


Finds the first span in each matched div to underline and add a hover state.

<!doctype html>
<html lang="en">
  <meta charset="utf-8">
  <title>first-child demo</title>
  span {
    color: #008;
  span.sogreen {
    color: green;
    font-weight: bolder;
  <script src="https://code.jquery.com/jquery-3.5.0.js"></script>
$( "div span:first-child" )
  .css( "text-decoration", "underline" )
  .hover(function() {
    $( this ).addClass( "sogreen" );
  }, function() {
    $( this ).removeClass( "sogreen" );


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