mj-divider-padding.mjml

<mjml>
  <mj-body>
    <mj-section>
      <mj-column>
        <mj-divider padding="5px" />
      </mj-column>
      <mj-column>
        <mj-divider padding-top="1px" padding-right="2px" padding-bottom="3px" padding-left="4px" />
      </mj-column>
    </mj-section>
  </mj-body>
</mjml>