.plugin-window
{
  background-color : white;
  border: 10px solid white; 
  display: grid;
  justify-content: center;
  align-items: center;
  align-content: center;
  height: 200px;
}

.loader {
  border: 8px solid #f3f3f3; /* Light grey */
  border-top: 8px solid #3498db; /* Blue */
  border-radius: 50%;
  width: 50px;
  height: 50px;
  animation: spin 2s linear infinite;
  margin-left: 50%;
  margin-top: 10px;
  visibility: hidden;
}

@keyframes spin {
  0% { transform: rotate(0deg); }
  100% { transform: rotate(360deg); }
}