.form-assembly-block {
  display: none;
}

.form-assembly-block--show {
  display: block;
}

.form-assembly-block__spinner {
  background: url('/themes/custom/broad/images/spinner.svg') no-repeat center center;
  background-size: contain;
  height: 50px;
  margin: 0 auto;
  width: 50px;
}