Classic editor's editable should have a background #3384

  1. The background of body should be red.
  2. The classic editor's editable background should not be red.
  3. The balloon editor's editable background should be red.

Editor-classic

This editable should have a background.

This editable should have a background.

This editable should have a background.

This editable should have a background.

Editor-balloon

This editable's background should be transparent.

This editable's background should be transparent.

This editable's background should be transparent.

This editable's background should be transparent.