JSFiddle - React, Tailwind, and code Playground

HTML

<div id="bin">
    <form class="add" method="post" action="/bin/add/">
        <p>I'm interested! Save for later.</p>
        <input type="hidden" name="product_id" value="23423">
        <input type="submit" value="Save">
    </form> 
    <form style="display:none;" class="remove" method="post" action="/bin/remove/">
        <p>I changed my mind--I'm not interested.</p>
        <input type="hidden" name="product_id" value="23423">
        <input type="submit" value="Unsave">
    </form>
</div>

JavaScript

$('#bin form').submit(function() {
    $.post($(this).attr('action'), {
        success: function(data) {
            $(this).hide().siblings('form').show()
        },
        data: $(this).serialize()

    });
    return false;
})