JSFiddle - React, Tailwind, and code Playground

HTML

<script src="https://netdna.bootstrapcdn.com/bootstrap/3.0.0/js/bootstrap.min.js"></script>
<link rel="stylesheet" href="https://netdna.bootstrapcdn.com/bootstrap/3.0.0/css/bootstrap.min.css">
<div class="container">
   <div class="row">
    <div class="col-md-3 index_div_item">
        <a href="#">
        <div class="well" id="item1">
                <h1 class="h1_item"><span class="titre_item">Title</span></h1>
                <h2 class="h2_item_glyphicon"><span class="glyphicon glyphicon-ok-circle"></span></h2>
                <p>sidiis amicorum mariti inops cum liberis</p>                
        </div>
        </a>
    </div>    
    <div class="col-md-3 index_div_item">
        <a href="#">
            <div class="well" id="item2">
                <h1 class="h1_item"><span class="titre_item">Title</span></h1>
                <h2  class="h2_item_glyphicon"><span class="glyphicon glyphicon-stats"></span></h2>
                <p>sidiis amicorum mariti inops cum liberis uxor alitur Reguli et dotatur ex aerario filia Scipionis, cum nobilitas florem adultae virginis diuturnum absentia pauperis erubesceret patr</p>
            </div>  
        </a>
    </div>    
    <div class="col-md-3 index_div_item">
        <a href="#">
            <div class="well" id="item3">
                <h1 class="h1_item"><span class="titre_item">Title</span></h1>
                <h2  class="h2_item_glyphicon"><span class="glyphicon glyphicon-send"></span></h2>
                <p>sidiis amicorum</p>
            </div>
        </a> 
    </div>  
    <div class="col-md-3 index_div_item">
        <a href="#">
            <div class="well" id="item4">
                <h1 class="h1_item"><span class="titre_item">Title</span></h1>
                <h2  class="h2_item_glyphicon"><span class="glyphicon glyphicon-cog"></span></h2>
                <p>sidiis amicorum mariti inops cum liberis uxor alitur Reguli et dotatur ex aerario filia</p>                
            </div>  
        </a>  
  ...

JavaScript

$(document).ready(function() {
    	//Initiate equalize on load
    	equalize();
    });
    
    //Equalize on resizing of window
    $(window).resize(function() {
    	removeHeights();
    	equalize();
    });
    
    function equalize(){
    	
    	$(".container .row").each(function() {
    		var heights = $(this).find("p").map(function() {
    		  return $(this).height();
    		}).get(),
    
    		maxHeight = Math.max.apply(null, heights);
    
    	  $(this).find("p").height(maxHeight);
    		
    	});
    }
    
    function removeHeights(){
    	
    	$(".container .row").each(function() {
    
    	  $(this).find("p").height("auto");
    		
    	});
    }