Sidebar Subscribe Form – Cannot Reduce Padding

No matter what I do, I cannot seem to affect the look of the sidebar MailChimp list subscribe plugin. Here’s the code I’ve tried to manipulate in the stylesheet to no avail. Please help – I don’t know what I am doing wrong.

Here’s the site: http://www.autoimmunemom.com/

Here’s the code:
.sidebar #mc_signup {
padding-left: 5px;
padding-right: 5px;
}

.sidebar #mc_subheader {
padding-bottom: 0px;
}

.sidebar .mc_merge_var input {
width: 30px;
}

.sidebar .mc_signup_submit input[type=”submit”] {
margin-left: 40px;
width: 30%;
}

.sidebar .mc_merge_var {
margin-top: -10px;
}

Thank you for any advice. I’ll be eternally grateful as I’ve spent a good while reading other posts on the topic and making css changes and it still looks the same. Ack!

https://ww.wp.xz.cn/plugins/mailchimp/