message: Fix bug where no margin when columns stack on details pages
  Fixes
diff: margin-bottom: 30px;
  }
  -.co-m-pane__details dd {
  +.co-m-pane__details {
  + // TODO: refactor so <dl>s have margin-bottom by default
  + margin-bottom: 20px;
  + .co-detail-table__row & {
  + margin-bottom: 0;
  + }
  + dd {
  font-size: 14px;
  }
  +}
  .co-m-pane__explanation {
  color: $color-grey-text;
  