.toast {
  position: fixed;
  right: calc((100% - 350px) / 2);
  width: 350px;
  z-index: 1050;
  transition-property: top;
  transition-duration: 0.3s;
}

.shadow {
  box-shadow: 0 0.25rem 0.75rem rgba(0, 0, 0, 0.1);
}