.loader_cont{
  background-color: #ccc;
  display: flex;
  justify-content: center;
  align-items: center;
  position: fixed;
  z-index: 99999;
  right: 0;
  left: 0;
  top: 0;
  bottom: 0;
  overflow: hidden;
}

.loader {
  border: 16px solid #f3f3f3;
  border-top: 16px solid #ff8800;
  border-radius: 50%;
  width: 120px;
  height: 120px;
  animation: spin 2s linear infinite;
}

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