JSFiddle - React, Tailwind, and code Playground

HTML

<form id="frmTest">
    <input type="checkbox" name="vehicle" value="Car" class="test">I have a car
    <br>
    <input type="checkbox" name="vehicle" value="Car" class="test">I have a bike
    <br>
    <input type="checkbox" name="vehicle" value="Car" class="test">I have nothing
    <br>
</form>
<div class="css-check">TEST</div>

CSS

.highlight{
    background-color:red;
}

JavaScript

$("input[type=checkbox]").change(function () {
    if ($('#frmTest input[type=checkbox]:checked').length > 0) {
        $(".css-check").addClass("highlight");
    } else {
        $(".css-check").removeClass("highlight");
    }
});