          .querySelectorAll('div.target')
              .forEach((target) =>
                assert.equal(
                  getComputedStyle(target).backgroundColor,
                  'rgb(255, 0, 0)'
                )
              );
            done();
          });
        });

        test('templates marked with "css-build" will be left alone', function () {
          makeElement('css-build');
          const template = document.querySelector('template#css-build');
          const div = template.conte