JSFiddle - React, Tailwind, and code Playground
HTML
<form class="cart">
<div class="cart" data-bundled_item_id="99">
something
</div>
<div class="cart" data-bundled_item_id="1009">
something else
</div>
</form>
CSS
form { border: 1px solid blue; padding: 1em;}
div { margin: 1em 0 }
JavaScript
$('.cart').not('[data-bundled_item_id]').css('border','3px solid red');