.header-logo img.logo-light {
  height: 80px;
  max-height: 80px;
  margin-top: 20px;
}

@media (max-width: 767px) {
  .header-logo img.logo-light {
    height: 54px;
    max-height: 54px;
  }
}

.loader {
  display: none;
  border: 4px solid #f3f3f3;
  border-top: 4px solid #007bff;
  border-radius: 50%;
  width: 24px;
  height: 24px;
  animation: spin 1s linear infinite;
  margin: 10px auto;
}
@keyframes spin {
  0% {
    transform: rotate(0deg);
  }
  100% {
    transform: rotate(360deg);
  }
}
.loader.show {
  display: block;
}