.spinner {
    border: 4px solid rgba(0, 0, 0, .1);
    width: 36px;
    height: 36px;
    border-radius: 50%;
    border-left-color: #09f;
    animation: spin 1s ease infinite;
}

@keyframes spin {
    0% {
        transform: rotate(0deg);
    }
    100% {
        transform: rotate(360deg);
    }
}
.progress-bar {
    width: 100%;
    background-color: #e0e0e0;
    border-radius: 4px;
    overflow: hidden;
    margin-top: 40px;
    margin-bottom: 40px;
  }

  .progress-bar-animation {
    height: 10px;
    background-color: #09f;
    width: 0%;
    animation: loading 2s infinite;
  }

  @keyframes loading {
    from { width: 0%; }
    to { width: 100%; }
  }