title: How to give the same behavior of an input hidden and of a custom label
body: <p>How to give the same behavior of a file type input button with style = "display: none;" To a custom label? That is, the label and the input can have the same actions even though the input is hidden.
  Below my html code:</p>
  
  <pre><code>&lt;label for="model1" class="uploadFile"&gt;File...&lt;/label&gt;
  &lt;input id="model1" type="file" name="model1" class="model1" style="display:none;" required="true"  /&gt;  
  </code></pre>