.loading-screen {
  z-index: 9999;
  width: 100%;
  height: 100%;
  position: fixed;
  padding: 0px;
  margin: 0px;
  display: block;
  background: #FFFFFF;
}

.loading-screen .spinner-container {
  left: calc(50% - 40px);
  top: calc(50% - 40px);
  display: block;
  position: absolute;
  font-size: 20px;
}

.loader {
    border: 6px solid #f3f3f3; /* Light grey */
    border-top: 6px solid #3498db; /* Blue */
    border-radius: 50%;
    width: 80px;
    height: 80px;
    animation: spin 0.6s linear infinite;
}

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