.loader {
  border: 6px solid #f3f3f3;
  border-radius: 50%;
  border-top: 6px solid #3498db;
  width: 90px;
  height: 90px;
  -webkit-animation: spin 1s linear infinite; /* Safari */
  animation: spin 1s linear infinite;
}
.page-loader {
  display: flex;
  justify-content: center;
  align-items: center;
  position: absolute;
  top: 0;
  bottom: 0;
  left: 0;
  right: 0;
  z-index: 10;
  background-color: white;
}

/* Safari */
@-webkit-keyframes spin {
  0% {
    -webkit-transform: rotate(0deg);
  }
  100% {
    -webkit-transform: rotate(360deg);
  }
}

@keyframes spin {
  0% {
    transform: rotate(0deg);
  }
  100% {
    transform: rotate(360deg);
  }
}
.hide {
  display: none;
}