JSFiddle - React, Tailwind, and code Playground

HTML

<div class="product-actions">
<div class="buttons buttons_3 group">div buttons
<a class="details" title="Détails" rel="nofollow" >link</a>
    </div>

</div>

<div class="product-actions">
<div class="buttons buttons_3 group">div buttons
<a class="details" title="Détails" rel="nofollow" >link</a>
    </div>

</div>

JavaScript

if ($('.product-actions').length )
		{		

		$('.product-actions').prepend("<div id='new_details_location'></div>");
//		$(".details").prependTo("#new_details_location");
		
		$('.buttons_3').attr('class','buttons buttons_2 group');		
		}
	
	
	 $(".product-actions a.details").each(function(n, i) {
		 $("#new_details_location").each(function(n, i) {
			 $(".details").prependTo($(this));
		 });
	 });