body {
  font-family: sans-serif;
}

.list-container {
  display: flex;
  flex-direction: row;
  gap: 1rem;
  width: 500px;
  overflow: scroll;
}

.list-item {
  height: 100px;
  width: 100px;
  background-color: antiquewhite;
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
}

.list-item.highlight {
  background-color: darkorange;
}