message: docs: remove -webkit-transition-timing-function CSS property
  Angular has stopped to support browser that requires that CSS property.
  All supported browsers support standard transition-timing-function CSS property
  PR Close
diff: @@ -125,7 +125,6 @@ button.vertical-menu-item {
  padding-left: 0;
  max-height: 4000px; // Arbitrary max-height. Can increase if needed. Must have measurement to transition height.
  transition: visibility 500ms, opacity 500ms, max-height 500ms;
  - -webkit-transition-timing-function: ease-in-out;
  transition-timing-function: ease-in-out;
  }
  @@ -136,7 +135,6 @@ button.vertical-menu-item {
  opacity: 0;
  max-height: 1px; // Must have measurement to transition height.
  transition: visibility 275ms, opacity 275ms, max-height 280ms;
  - -webkit-transition-timing-function: ease-out;
  transition-timing-function: ease-out;
  }
  }
  