Описание тега insertafter

The jquery .insertAfter() insert every element in the set of matched elements after the target.

Consider the following HTML:

<div class="container">
  <h2>Greetings</h2>
  <div class="inner">Hello</div>
  <div class="inner">Goodbye</div>
</div>

We can create content and insert it after several elements at once:

$( "<p>Test</p>" ).insertAfter( ".inner" );

Each inner <div> element gets this new content:

<div class="container">
  <h2>Greetings</h2>
  <div class="inner">Hello</div>
  <p>Test</p>
  <div class="inner">Goodbye</div>
  <p>Test</p>
</div>