JSFiddle - React, Tailwind, and code Playground

HTML

<script src="http://jqueryvalidation.org/files/dist/jquery.validate.min.js"></script>
<link rel="stylesheet" href="http://jqueryvalidation.org/files/demo/site-demos.css">
<script src="http://jqueryvalidation.org/files/dist/additional-methods.min.js"></script>
<form id="myform">
<label for="field">Required, email: </label>
<input class="left" id="field" name="field">
<br/>
<input type="submit" value="Validate!">
</form>

JavaScript

jQuery.validator.setDefaults({
  debug: true,
  success: "valid"
});
$( "#myform" ).validate({
  rules: {
    field: {
      required: true,
      emailfull: true
    }
  }
});

jQuery.validator.addMethod("emailfull", function(value, element) {
  return this.optional(element) || /^[_a-z0-9-]+(\.[_a-z0-9-]+)*@[a-z0-9-]+(\.[a-z0-9-]+)*(\.[a-z]{2,4})$/.test(value);
}, "Please enter valid email address!");