Append after - jQuery
HTML
<div data-des="launches the region's first Analytical Centre of Excellence (ACE)" data-title="Statistics Centre - Abu Dhabi" class="item">DEMO</div>
<br><br><br><br><br><br>
<div class="container">
<h2>Greetings</h2>
<div class="inner">Hello</div>
<div class="inner">Goodbye</div>
</div>
JavaScript
$( "<p>Test</p>" ).insertAfter( ".inner" );