message: tweaking css themer size tests
diff: @@ -162,7 +162,6 @@ module('Acceptance | css editing (make sure browser window has focus!)', functio
  assert.dom('[data-test-large-btn]').exists();
  assert.dom('[data-test-large-btn]').doesNotHaveClass('selected');
  assert.dom('[data-test-cardhost-cards]').hasClass('themer-card-width--small');
  - await waitForAnimation(async () => await percySnapshot('themer: small card width'));
  // toggle to full width
  await click('[data-test-medium-btn]');
  @@ -178,6 +177,13 @@ module('Acceptance | css editing (make sure browser window has focus!)', functio
  assert.dom('[data-test-small-btn]').doesNotHaveClass('selected');
  assert.dom('[data-test-medium-btn]').doesNotHaveClass('selected');
  await waitForAnimation(async () => await percySnapshot('themer: large card width'));
  +
  + await click('[data-test-small-btn]');
  + assert.dom('[data-test-large-btn]').doesNotHaveClass('selected');
  + assert.dom('[data-test-cardhost-cards]').hasClass('themer-card-width--small');
  + assert.dom('[data-test-small-btn]').hasClass('selected');
  + assert.dom('[data-test-medium-btn]').doesNotHaveClass('selected');
  + await waitForAnimation(async () => await percySnapshot('themer: small card width'));
  });
  test('layout mode: toggling card width', async function(assert) {
  