.invoice .optional {
    display: none;
}
.invoice-table {
  border: 1px solid #ccc;
  border-collapse: collapse;
  margin:0;
  padding:0;
  width: 100%;
}
.invoice-table tr {
  border: 1px solid #ddd;
  padding: 5px;
}
.invoice-table th, .invoice-table td {
  padding: 10px;
  text-align: center;
}
.invoice-table th {
  font-size: 14px;
  letter-spacing: 1px;
  text-transform: uppercase;
}
@media screen and (max-width: 600px) {
  .invoice-table {
    border: 0;
  }
  .invoice-table thead {
    display: none;
  }
  .invoice-table tr {
    border-bottom: 2px solid #ddd;
    display: block;
    margin-bottom: 10px;
  }
  .invoice-table td {
    border-bottom: 1px dotted #ccc;
    display: block;
    font-size: 13px;
    text-align: left;
  }
  .invoice-table td:last-child {
    border-bottom: 0;
  }
  .invoice-table td:before {
    content: attr(data-label);
    float: left;
    font-weight: bold;
    text-transform: uppercase;
  }
}

#notasuptoLoader {
          position: fixed;
          left: 50%;
          top: 50%;
          z-index: 1;
          width: 100px;
          height: 100px;
          margin: -75px 0 0 -75px;
          border: 16px solid #f3f3f3;
          border-radius: 50%;
          border-top: 16px solid #3498db;
          width: 100px;
          height: 100px;
          -webkit-animation: spin 2s linear infinite;
          animation: spin 2s linear infinite;
        }

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

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