JSFiddle - React, Tailwind, and code Playground

HTML

<script src="http://ajax.aspnetcdn.com/ajax/jquery.validate/1.12.0/jquery.validate.min.js"></script>
<form>
    <input type="text" name="username" minlength="3" required="required" />
    <input type="submit" value="Send" />
</form>
<form>
    <input type="text" name="username" minlength="3" required="required" />
    <input type="submit" value="Send" />
</form>
<form>
    <input type="text" name="username" minlength="3" required="required" />
    <input type="submit" value="Send" />
</form>

JavaScript

$(document).ready(function () {

    $('form').each(function () {
        $(this).validate({
            // your options
        });
    });

});