JSFiddle - React, Tailwind, and code Playground

HTML

<script src="https://unpkg.com/filepond-plugin-image-preview/dist/filepond-plugin-image-preview.js"></script>
<script src="https://unpkg.com/filepond/dist/filepond.js"></script>
<link rel="stylesheet" href="https://unpkg.com/filepond/dist/filepond.css">
<link rel="stylesheet" href="https://unpkg.com/filepond-plugin-image-preview/dist/filepond-plugin-image-preview.min.css">
<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.5.1/jquery.js" integrity="sha256-QWo7LDvxbWT2tbbQ97B53yJnYU3WhH/C8ycbRAkjPDc=" crossorigin="anonymous"></script>
<input type="file" name='file' class='filepond' multiple id='file_upload' />

CSS

.filepond--drop-label {
  background-color: #ECF7E9;
  height: auto!important;
}

.images {
  display: inline-block;
  padding: 0 5px;
}

.images_child {
  display: contents;
  padding: 0 5px;
  text-align: center;
}

.filepond--root * {
  height: auto;
  padding: 0 4px;
}

img {
  width: 25%;
  opacity: 0.8;
  filter: grayscale(100%);
  border-radius: 8px;
  cursor: pointer;
}


/* Responsive layout - makes a two column-layout instead of four columns */

@media screen and (max-width: 800px) {
  .column {
    flex: 50%;
    max-width: 50%;
  }
}


/* Responsive layout - makes the two columns stack on top of each other instead of next to each other */

@media screen and (max-width: 600px) {
  .column {
    flex: 100%;
    max-width: 100%;
  }
}

JavaScript

FilePond.parse(document.body);
const inputElement = document.querySelector('#file_upload');

FilePond.registerPlugin(FilePondPluginImagePreview);

const pond = FilePond.create(inputElement, {
  allowMultiple: true,
  imagePreviewHeight: 135,
  labelIdle: `
    <div style="width:100%;height:100%;">
    	<p>
        Drag &amp; Drop your files or <span class="filepond--label-action" tabindex="0">Browse</span><br>
        Some samples to give you an idea :
      </p>
    </div>
    <div class="images" id="allImages">
       <div class="images_child">
          <img src="https://live.staticflickr.com/4561/38054606355_26429c884f_b.jpg">
       </div>
       <div class="images_child">
          <img src="https://live.staticflickr.com/4561/38054606355_26429c884f_b.jpg">
       </div>
       <div class="images_child">
          <img src="https://live.staticflickr.com/4561/38054606355_26429c884f_b.jpg">
       </div>
     </div>
  `,
  beforeAddFile (e) {
  	$('#allImages').html('');
  }
});