slateZ(0px); opacity: 0;'),
              'condensed-title when progress = 0.5');

          container._updateScrollState(container.offsetHeight);

          assert.isTrue(
              sameCSS(
                  container.$.mainTitle,
                  'will-change: opacity; transform: translate(100px, 100px) scale3d(2, 2, 1); opacity: 0;'),
              'main-title when progress = 1');

          assert.isTrue(
              sameCSS(
                  container.$.condensedTitle,
                  'will-