.custom-table thead tr th {
  font-size: 1em;
  font-weight: bold;
  text-transform: none;
}

details summary {
  list-style: none;
  cursor: pointer;
  font-size: 0.9em;
  font-weight: normal;
  text-align: center;
}

details summary::-webkit-details-marker {
  display: none;
}

.price-history {
  margin: 5px 0 0 0;
  font-size: 0.8em;
  text-align: center;
}