Tightening Margins on Newsletter Block

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Hello all, I'm trying to get into the CSS to tighten up the Margins and shorten the height of the Newsletter block. It's too massive right now. I dig into the code with Chrome Developer Tools and I've tried all kinds of classes but it's just not working. Anyone have a solution?

Add to Home > design > Custom CSS

[data-section-id="5ed90d9b6521f36f62af59cc"] {
    min-height: unset !important;
}
[data-section-id="5ed90d9b6521f36f62af59cc"] .content-wrapper {
    padding-top: 1px !important;
    padding-bottom: 1px !important;
}