.login_overlay {
  position: absolute;
  left: 0;
  top: 0;
  width: 100vw;
  height: 100vh;
  z-index: 100;
  display: flex;
  align-items: center;
  justify-content: center;
  background-color: rgba(0, 0, 0, 0.2);
}
.login_loader {
  position: absolute;
  left: 50%;
  top: 50%;
  transform: translate(-50%, -50%);
  z-index: 100;
  display: flex;
  align-items: center;
  justify-content: center;
}
.login_loader img {
  width: 150px;
  height: 150px;
  animation: spin 1s linear infinite;
}
@keyframes spin {
  0% { transform: rotate(0deg); }
  100% { transform: rotate(360deg); }
}