#ctre_wnd {
  position: fixed;
  bottom: 0;
  right: 10px;
  background: #fff;
  box-shadow: 0px 0px 40px rgba(0, 0, 0, 0.15);
  border-radius: 3px 3px 0 0;
  z-index: 2147483647;
}

@media (prefers-color-scheme: dark) {
  #ctre_wnd {
    background: #000;
    box-shadow: 0px 0px 40px rgba(255, 255, 255, 0.15);
  }
}