.default-layout-enter-active,
.default-layout-leave-active {
  transition: opacity 0.5s;
}
.default-layout-enter,
.default-layout-leave-active {
  opacity: 0;
}
//
.default-page-enter-active,
.default-page-leave-active {
  transition: opacity 0.3s;
}
.default-page-enter,
.default-page-leave-active {
  opacity: 0;
}