jQuery Selector :first-child

Introduction

The :first-child selector selects elements who are the first child of their parent. 

$(":first-child")

Select every <p> element that is the first child of its parent:

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<!DOCTYPE html>
<html>
<head>
<script src="https://ajax.googleapis.com/ajax/libs/jquery/3.4.1/jquery.min.js"></script>
<script>
$(document).ready(function(){
  $("p:first-child").css("background-color", "yellow");
});/*from w  ww. j av a 2 s  .  c  o m*/
</script>
</head>
<body>

<p>The first paragraph in body.</p>

<div style="border:1px solid;">
  <p>The first paragraph in div.</p>
  <p>The last paragraph in div.</p>
</div><br>

<div style="border:1px solid;">
  <span>This is a span element.</span>
  <p>The first paragraph in another div.</p>
  <p>The last paragraph in another div.</p>
</div>

<p>The last paragraph in body.</p>

</body>
</html>



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