.t-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  bottom: 0;
  background-color: var(--td-overlay-bg-color, var(--td-mask-active, rgba(0, 0, 0, 0.6)));
  transition-property: opacity;
  transition-duration: var(--td-overlay-transition-duration, 300ms);
  transition-timing-function: ease;
}
.t-fade-enter {
  opacity: 0;
}
.t-fade-leave-to {
  opacity: 0;
}