Bootstrap 4 drag and drop file upload with choose option

Bootstrap drag and drop file upload : with choose option snippets by bbbootstrap.

HTML

<div class="container d-flex justify-content-center mt-100">
    <div class="row">
        <div class="col-md-12">

<div class="file-drop-area">
  <span class="choose-file-button">Choose files</span>
  <span class="file-message">or drag and drop files here</span>
  <input class="file-input" type="file" multiple>
</div>
            
        </div>
        
    </div>
</div>

CSS

body {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: space-between;
  background: linear-gradient(to right, #8E24AA, #b06ab3);
  color: #D7D7EF;
  font-family: 'Lato', sans-serif;
}

h2 {
  margin: 50px 0;
}
.file-drop-area {
  position: relative;
  display: flex;
  align-items: center;
  width: 450px;
  max-width: 100%;
  padding: 25px;
  border: 1px dashed rgba(255, 255, 255, 0.4);
  border-radius: 3px;
  transition: 0.2s;
 
}

.choose-file-button {
  flex-shrink: 0;
  background-color: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 3px;
  padding: 8px 15px;
  margin-right: 10px;
  font-size: 12px;
  text-transform: uppercase;
}

.file-message {
  font-size: small;
  font-weight: 300;
  line-height: 1.4;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.file-input {
  position: absolute;
  left: 0;
  top: 0;
  height: 100%;
  width: 100%;
  cursor: pointer;
  opacity: 0;
  
}

.mt-100{
    margin-top:100px;
}

JAVASCRIPT

$(document).on('change', '.file-input', function() {
        

  var filesCount = $(this)[0].files.length;
  
  var textbox = $(this).prev();

  if (filesCount === 1) {
    var fileName = $(this).val().split('\\').pop();
    textbox.text(fileName);
  } else {
    textbox.text(filesCount + ' files selected');
  }
});

RESOURCES

https://stackpath.bootstrapcdn.com/bootstrap/4.3.1/css/bootstrap.min.css

https://stackpath.bootstrapcdn.com/bootstrap/4.3.1/js/bootstrap.bundle.min.js

https://cdnjs.cloudflare.com/ajax/libs/jquery/3.2.1/jquery.min.js