ui-default: init

将ui-default合并至主存储库便于维护

packages/ui-default/components/rotator/rotator.page.styl

@@ -0,0 +1,20 @@
+.rotator
+  position: relative
+  height: 1em
+
+.rotator__item
+  position: absolute
+  left: 0
+  top: 0
+  width: 100%
+  height: 100%
+  transition: transform .2s, opacity .2s
+  transition-timing-function: ease-out-cubic
+
+  &.pos--above
+    transform: translateY(-100%)
+    opacity: 0
+
+  &.pos--below
+    transform: translateY(100%)
+    opacity: 0