tu-view-plus/lib/src/dropdown/style/dropdown.css

.tu-dropdown {
  box-sizing: border-box;
  box-shadow: 3px 3px 6px var(--tu-color-shadow-dark, #babbc0), -2px -2px 5px var(--tu-color-shadow-light, #ffffff);
  background: var(--tu-color-global-bg, #dfe1e6);
  border-radius: var(--tu-border-radius, 2px);
  padding: 0;
}
.tu-dropdown__wrap {
  overflow-y: auto;
  max-height: 200px;
}
.tu-dropdown__list {
  margin-top: 0;
  margin-bottom: 0;
  padding-left: 0;
  list-style: none;
}

.tu-dropdown--mini .tu-dropdown-item {
  font-size: var(--tu-font-size-mini, 10px);
  padding: 2px 8px;
}
.tu-dropdown--mini .tu-dropdown-item .tu-dropdown-item__icon {
  margin-right: 4px;
}
.tu-dropdown--mini .tu-dropdown-item .tu-dropdown-item__suffix {
  margin-left: 4px;
}
.tu-dropdown--mini [class*=tu-icon] {
  font-size: var(--tu-font-size-mini, 10px);
}

.tu-dropdown--small .tu-dropdown-item {
  font-size: var(--tu-font-size-small, 12px);
  padding: 4px 10px;
}
.tu-dropdown--small .tu-dropdown-item .tu-dropdown-item__icon {
  margin-right: 6px;
}
.tu-dropdown--small .tu-dropdown-item .tu-dropdown-item__suffix {
  margin-left: 6px;
}
.tu-dropdown--small [class*=tu-icon] {
  font-size: var(--tu-font-size-small, 12px);
}

.tu-dropdown--medium .tu-dropdown-item {
  font-size: var(--tu-font-size-medium, 14px);
  padding: 6px 12px;
}
.tu-dropdown--medium .tu-dropdown-item .tu-dropdown-item__icon {
  margin-right: 8px;
}
.tu-dropdown--medium .tu-dropdown-item .tu-dropdown-item__suffix {
  margin-left: 8px;
}
.tu-dropdown--medium [class*=tu-icon] {
  font-size: var(--tu-font-size-medium, 14px);
}

.tu-dropdown--large .tu-dropdown-item {
  font-size: var(--tu-font-size-large, 14px);
  padding: 8px 14px;
}
.tu-dropdown--large .tu-dropdown-item .tu-dropdown-item__icon {
  margin-right: 10px;
}
.tu-dropdown--large .tu-dropdown-item .tu-dropdown-item__suffix {
  margin-left: 10px;
}
.tu-dropdown--large [class*=tu-icon] {
  font-size: var(--tu-font-size-large, 14px);
}

.tu-dropdown-item {
  position: relative;
  z-index: 1;
  display: flex;
  align-items: center;
  box-sizing: border-box;
  width: 100%;
  padding: 6px 12px;
  color: var(--tu-color-text, #71757f);
  font-size: var(--tu-font-size, 14px);
  line-height: var(--tu-line-height-base, 1.5);
  text-align: left;
  cursor: pointer;
  transition: background var(--tu-transition-duration-2, 0.2s), color var(--tu-transition-duration-2, 0.2s);
}
.tu-dropdown-item.is-active, .tu-dropdown-item:not(.is-disabled):hover {
  background: var(--tu-color-hover-bg, rgba(125, 125, 125, 0.1));
  color: var(--tu-color-primary, #5e7ce0);
}
.tu-dropdown-item__content {
  overflow: hidden;
  white-space: nowrap;
  text-overflow: ellipsis;
}

.tu-dropdown-item.is-suffix {
  justify-content: space-between;
}

.tu-dropdown-item__icon {
  display: inline-flex;
}

.tu-dropdown-item__suffix {
  display: inline-flex;
  align-items: center;
}

.tu-dropdown-item.is-disabled {
  color: var(--tu-color-text-placeholder, #9b9fa8);
  cursor: not-allowed;
}

.tu-dropdown-button {
  display: inline-block;
}
.tu-dropdown-button + .tu-dropdown-button {
  margin-left: 12px;
}
.tu-dropdown-button .tu-button-group button + button {
  padding-left: 8px;
  padding-right: 8px;
}

.tu-dropdown-group__title {
  box-sizing: border-box;
  width: 100%;
  padding: 4px 10px;
  cursor: default;
  color: var(--tu-color-text-placeholder, #9b9fa8);
  font-size: var(--tu-font-size-small, 12px);
  overflow: hidden;
  white-space: nowrap;
  text-overflow: ellipsis;
}
.tu-dropdown-group__title:not(:first-child) {
  margin-top: 4px;
}