.rail {
  cursor: pointer;
  display: inline-block;
  position: relative;
  touch-action: none;
  -webkit-tap-highlight-color: transparent;
  width: 100%;
}

.small {
  border-radius: 2px;
  height: 2px;
  padding: 8px 0;
}

.medium {
  border-radius: 2px;
  height: 4px;
  padding: 12px 0;
}

.large {
  border-radius: 8px;
  height: 8px;
  padding: 10px 0;
}