css-sandbox/form/select.css

.select {

}

.select__option {

}

/* Override some Choices.js defaults */
.choices {
  margin-bottom: 0px;
  font-size: inherit;
}

.choices__list--multiple .choices__item {
  font-size: inherit;
}

/* Actual styling */
.choices__list--dropdown {
  white-space: nowrap;
  width: auto;
}

.choices__list--multiple {
  display: flex;
  flex-wrap: wrap;
}

.choices__list--multiple .choices__item {
  background-color: maroon;
  border: 1px solid maroon;
  color: #fff;
}

.choices__list--multiple .choices__item.is-highlighted {
  background-color: #00a5bb;
  border: 1px solid #008fa1;
}