mj-social-container-background-color.mjml

<mjml>
  <mj-body>
    <mj-section>
      <mj-column>
        <mj-social container-background-color="purple">
          <mj-social-element name="xing" padding="2px" padding-bottom="5px">
						Tumblr
          </mj-social-element>
          <mj-social-element name="youtube" icon-padding="8px">
            Vimeo
          </mj-social-element>
          <mj-social-element  name="web" text-padding="9px">
						Web
          </mj-social-element>
        </mj-social>
      </mj-column>
    </mj-section>
  </mj-body>
</mjml>