@keyframes bf-spin { to { transform: rotate(360deg); } }

#form-bitforms_1_11_1 .bf-spinner {
  display: none;
  width: 1em; height: 1em;
  border: 2px solid currentColor;
  border-right-color: transparent;
  border-radius: 50%;
  animation: bf-spin .6s linear infinite;
  margin-left: .4em;
  vertical-align: middle;
}

#form-bitforms_1_11_1 button.bf-btn-loading .bf-spinner{
  display: inline-block !important;
}