.frame-container {
  display: flex;
  width: 100%;
  height: 100%;
  position: absolute;
  pointer-events: none;
}

.empty-frame {
  height: 1px;
  background-color: transparent;
}

.shadow-frame {
  flex: 1;
  background-color: rgba(0, 0, 0, 0.2);
  margin-left: -1px;
}

body.shaded .shadow-frame {
  background-color: rgba(0, 0, 0, 0.95);
}