JSFiddle - React, Tailwind, and code Playground

HTML

<form class="form" action="1.php" type="post">
  <input type="text">
  <input class="submitbutton" type="submit">
</form>

JavaScript

var $form = $('.form'),
		$btn = $('.submitbutton');

$btn.prop('disabled',true);

$form.hover(
	function(e){
  	e.stopPropagation();
    $btn.prop('disabled',false);
  }, function(e){
  	e.stopPropagation();
  	$btn.prop('disabled',true);
	}
);