JSFiddle - React, Tailwind, and code Playground

HTML

<div id="wrapper">

      <div id="number-38" class="images">
     	  <img src="https://pronewz.files.wordpress.com/2015/12/tantrum-charger-7ad0f2416f0e8b5c1f-465-349-2-95-1.jpg" alt="" /></a>
      </div>

      <div id="number-37" class="images">
        <img src="https://pronewz.files.wordpress.com/2015/12/tantrum-charger-7ad0f2416f0e8b5c1f-465-349-2-95-1.jpg" alt="" /></a>
      </div>
      <div id="number-36" class="images">
        <img src="https://pronewz.files.wordpress.com/2015/12/tantrum-charger-7ad0f2416f0e8b5c1f-465-349-2-95-1.jpg" alt="" /></a>
      </div>
      <div id="number-35" class="images">
        <img src="https://pronewz.files.wordpress.com/2015/12/tantrum-charger-7ad0f2416f0e8b5c1f-465-349-2-95-1.jpg" alt="" /></a>
      </div>
      <p align="center">
      <!--  <p align="center" style="display: inline-block; width:150p-->
        <a href="" id="show-aps" class="btndown"></a>
      <!-- </p>		     -->
    	
    </div>

CSS

body{
          margin:100px;
      }
 #wrapper { width:960px; margin:30px auto; }
      a.btndown{
          clear: both;
          height:40px;
          width: 30px;
          padding:0px 0px;
          color:#ffffff;
          background-color:#007bff;
          /*position:relative;*/
          display:inline-block;
      }
      a.btndown:after{
          clear: both;
          position:relative;
          bottom:-60px;
          left:-15px;
          content:" ";
          width: 0px;
          height: 0px;
          border-style: solid;
          border-width: 30px 30px  0px  30px;
          border-color: #007bff   transparent transparent    transparent;
      }
      .images { position: relative; width: 465px; }
      .images p { position: absolute; left: 0; bottom: 0; padding: 10px; width: 405px; color: #FFF; margin-left: 0px; margin-bottom: 4px;color: #FFFFFF; }


      #number-35  { margin-top:30px; margin-bottom:0px; float:right; }
      #number-36  { margin-top:30px; margin-bottom:0px; float:left; }
      #number-37  { margin-top:30px; margin-bottom:0px; float:right; }
      #number-38  { margin-top:30px; margin-bottom:0px; float:left; }