index.css

.react-samay-wrapper {
  position: relative;
  display: inline-block;
}

.react-samay-panel-combobox {
  position: absolute;
  z-index: 100;
  width: 100%;

  display: flex;
  flex-direction: row;
  background-color: white;
  border-radius: 4px;
  border-left: 1px solid #ccc;
  border-right: 1px solid #ccc;
  margin-left: -1px;
}

.react-samay-panel-select {
  flex: 1;

  /*
   * position relative needed to make offsetTop work
   * used in scrolling to selected option
   */
  position: relative;
  overflow-y: auto;
  max-height: 12em;
  border: 1px solid #e9e9e9;

  scrollbar-width: 8px;
}

.react-samay-panel-select:first-child {
  border-left: 0;
}

.react-samay-panel-select:last-child {
  border-right: 0;
}

.react-samay-panel-select ul {
  list-style: none;
  box-sizing: border-box;
  margin: 0;
  padding: 0;
  width: 100%;
}

.react-samay-panel-select li {
  list-style: none;
  margin: 0;
  padding: 0;
  width: 100%;
  height: 24px;
  line-height: 24px;
  text-align: center;
  cursor: pointer;
  user-select: none;
}

.react-samay-panel-select li:hover {
  background: #edfaff;
}

.react-samay-panel-select li.react-samay-panel-select-option-selected {
  background: #f7f7f7;
  font-weight: bold;
}

.react-samay-panel-select li.react-samay-panel-select-option-disabled {
  color: #ccc;
}
.react-samay-panel-select li.react-samay-panel-select-option-disabled:hover {
  background: transparent;
  cursor: not-allowed;
}