JSFiddle - React, Tailwind, and code Playground

HTML

<script src="http://ajax.aspnetcdn.com/ajax/jquery.validate/1.8/jquery.validate.js"></script>
<form> 
    <input name="test" /> 
   <input type="submit" value="Submit">
</form>

CSS

.error {
    color:green;
}
.valid {
    color:green;
}

JavaScript

$("form").validate({
    rules: {
            test: required,
    }
});