#spinner {
    text-align: center;
}

.spinner {
    margin: 25px auto;
    border: 5px solid #f3f3f3;
    border-top: 5px solid #96be0f;
    border-radius: 50%;
    width: 50px;
    height: 50px;
    animation: spin 1s linear infinite;
}

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