message: Forgot to remove border-radius from group__body.
diff: .group__body {
  border: 1px solid $color-grey-background-border;
  border-top: none;
  - border-radius: 0 0 5px 5px;
  padding-left: ($grid-gutter-width / 2);
  padding-right: ($grid-gutter-width / 2);
  overflow: hidden;
  