.loader-container {
  display: none;
  position: relative;
  width: 40px;
  height: 40px;
  margin: 5px;
}

/* Spinning loader */
.loader {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  border: 5px solid #f3f3f3;
  border-radius: 50%;
  border-top: 5px solid #3498db;
  animation: spin 1s linear infinite;
}

/* Spinning animation */
@keyframes spin {
  0% {
    transform: rotate(0deg);
  }

  100% {
    transform: rotate(360deg);
  }
}