JSFiddle - React, Tailwind, and code Playground

HTML

<script src="http://ajax.aspnetcdn.com/ajax/jquery.validate/1.11.0/jquery.validate.min.js"></script>
<form class="my_form" method="post" action="#">
  
  <div class="error-container">
    <ul>
    </ul>
  </div><!--error-container-->

    <p><label>My checkbox 1</label>
    <input class="my_checkbox_group" id="my_checkbox_1"
    name="my_checkbox_1[]" type="checkbox" value="Yes" /></p>
    <p><label>My checkbox 2</label>
    <input class="my_checkbox_group" id="my_checkbox_2"
    name="my_checkbox_2[]" type="checkbox" value="Yes" /></p>
    <p><label>My checkbox 3</label>
    <input class="my_checkbox_group" id="my_checkbox_3"
        name="my_checkbox_3[]" type="checkbox" value="Yes" /></p>
    <input type="submit" value="Submit" />
</form>

CSS

input.error { background: #fdf3f3; border: 1px solid #ff3333; color: #ff3333; }
.error-container    { background: #fdf3f3; border: 1px solid #ff3333; clear: both; display: none; overflow: auto; padding: 10px; }
.error-container ul { margin-bottom: 0; }
.error-container label { float: none; font-weight: normal!important; width: auto; }

JavaScript

$(document).ready(function () {

    $.validator.addMethod("checkboxrule", function (value, element) {
        return ($('#my_checkbox_1').is(':checked') || $('#my_checkbox_2').is(':checked') || $('#my_checkbox_3').is(':checked'))
    }, "Select at least one of these three");

    $('.my_form').validate({ // initialize the plugin
        errorContainer: ".error-container",
        errorLabelContainer: ".error-container ul",
        wrapper: "li",
        focusInvalid: false,
        ignore: "",
        groups: {
            somename: "my_checkbox_1[] my_checkbox_2[] my_checkbox_3[]"
        },
        rules: {
            'my_checkbox_1[]': {
                checkboxrule: true
            },
            'my_checkbox_2[]': {
                checkboxrule: true
            },
            'my_checkbox_3[]': {
                checkboxrule: true
            }
        },
        submitHandler: function (form) { // for demo
            alert('valid form submitted'); // for demo
            return false; // for demo
        }
    });

});