JSFiddle - React, Tailwind, and code Playground

HTML

<form action="videator.php" method="post" enctype="multipart/form-data" id='btnSubmit'>
  <h3> Select a video to upload:</h3>
  <img class='upload' src="img/upload.png"/>
  <input class="form" type="file" name="fileToUpload" id="fileToUpload" >
  <input class="form" id='' type="submit"  value="Upload Image"  name="newName">
</form>

JavaScript

$(".upload").click(function(){
  $("#fileToUpload").click();
});

document.getElementById("fileToUpload").onchange = submitAction;

function submitAction() {
  var form = document.getElementById("btnSubmit").submit();
  alert('no errors');
  return false;
}