body {
  font-family: sans-serif;
}

.accordion-icon {
  border: solid currentcolor;
  border-width: 0 2px 2px 0;
  display: inline-block;
  height: 8px;
  pointer-events: none;
  transform: translateY(-2px) rotate(45deg);
  width: 8px;
}

.accordion-icon--rotated {
  transform: translateY(2px) rotate(-135deg);
}

.tab {
  border: solid black;
  border-width: 1px;
  margin: 4px 4px 4px 4px;
  padding: 8px;
}