.accordion-header[aria-expanded="true"] {
  background-color: #6633CC !important;
  color: #FFFFFF !important;
}

.accordion-header[aria-expanded="true"] .arrow-icon {
  color: #FFFFFF;
}

.accordion-header .arrow-icon {
  flex-shrink: 0;
  width: 20px;
  height: 20px;
  min-width: 20px;
  min-height: 20px;
}