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

.tu-picker {
  position: relative;
  display: inline-flex;
  align-items: center;
  box-sizing: border-box;
  vertical-align: middle;
  width: 100%;
  font-size: var(--tu-font-size-medium, 14px);
  height: 32px;
  border-radius: var(--tu-border-radius, 2px);
  box-shadow: inset 2px 2px 5px var(--tu-color-shadow-dark, #babbc0), inset -2px -2px 5px var(--tu-color-shadow-light, #ffffff);
  border: 1px solid transparent;
  padding: 0 12px;
  transition: all var(--tu-transition-duration-3, 0.3s) ease;
  font-size: var(--tu-font-size-medium, 14px);
  font-size: var(--tu-font-size-medium, 14px);
}
.tu-picker:hover:not(.is-disabled) {
  box-shadow: none;
  border-color: var(--tu-color-shadow-light, #ffffff);
}
.tu-picker:hover:not(.is-disabled) .tu-picker__icon--clear {
  display: block;
}
.tu-picker:hover:not(.is-disabled) .tu-picker__icon--clear:hover {
  color: var(--tu-color-text, #71757f);
}

.tu-picker:hover:not(.is-disabled) .tu-picker__icon ~ * {
  display: none;
}

.tu-picker__input-wrap {
  display: inline-flex;
  flex: 1;
}
.tu-picker__input {
  width: 100%;
  padding: 0;
  outline: none;
  border: none;
  background: none;
  box-sizing: border-box;
  flex-grow: 1;
  font-size: inherit;
  color: var(--tu-color-text, #71757f);
  height: 32px;
  line-height: 32px;
  transition: all var(--tu-transition-duration-1, 0.1s) cubic-bezier(0, 0, 1, 1);
  -webkit-appearance: none;
}
.tu-picker__input::-moz-placeholder {
  color: var(--tu-color-text-placeholder, #9b9fa8);
}
.tu-picker__input::placeholder {
  color: var(--tu-color-text-placeholder, #9b9fa8);
}
.tu-picker__input::-moz-placeholder {
  color: var(--tu-color-text-placeholder, #9b9fa8);
}
.tu-picker__input::-ms-input-placeholder {
  color: var(--tu-color-text-placeholder, #9b9fa8);
}

.tu-picker.is-disabled {
  cursor: not-allowed;
  box-shadow: none;
  opacity: 0.7;
  background-color: var(--tu-color-base-bg, rgba(128, 128, 128, 0.22));
}
.tu-picker.is-disabled input {
  cursor: not-allowed;
}

.tu-picker [class*=tu-icon] {
  font-size: var(--tu-font-size-medium, 14px);
}
.tu-picker__prefix {
  display: inline-flex;
  white-space: nowrap;
  flex-shrink: 0;
  flex-wrap: nowrap;
  align-items: center;
  justify-content: center;
  height: 100%;
  text-align: center;
  color: var(--tu-color-text-placeholder, #9b9fa8);
  transition: all var(--tu-transition-duration-2, 0.2s);
}

.tu-picker [class*=tu-icon] {
  font-size: var(--tu-font-size-medium, 14px);
}
.tu-picker__suffix {
  display: inline-flex;
  white-space: nowrap;
  flex-shrink: 0;
  flex-wrap: nowrap;
  align-items: center;
  justify-content: center;
  height: 100%;
  text-align: center;
  color: var(--tu-color-text-placeholder, #9b9fa8);
  transition: all var(--tu-transition-duration-2, 0.2s);
}
.tu-picker__icon {
  position: relative;
  color: var(--tu-color-text-placeholder, #9b9fa8);
  transition: transform var(--tu-transition-duration-2, 0.2s);
}
.tu-picker__icon--clear {
  display: none;
  cursor: pointer;
  transition: color var(--tu-transition-duration-3, 0.3s);
}

.tu-picker--mini {
  font-size: var(--tu-font-size-mini, 10px);
  height: 24px;
}
.tu-picker--mini .tu-picker__input {
  height: 24px;
  line-height: 24px;
}

.tu-picker--mini .tu-picker__prefix, .tu-picker--mini .tu-picker__suffix {
  font-size: var(--tu-font-size-mini, 10px);
}
.tu-picker--mini .tu-picker__prefix [class*=tu-icon], .tu-picker--mini .tu-picker__suffix [class*=tu-icon] {
  font-size: var(--tu-font-size-mini, 10px);
}

.tu-picker--small {
  font-size: var(--tu-font-size-small, 12px);
  height: 28px;
}
.tu-picker--small .tu-picker__input {
  height: 28px;
  line-height: 28px;
}

.tu-picker--small .tu-picker__prefix, .tu-picker--small .tu-picker__suffix {
  font-size: var(--tu-font-size-small, 12px);
}
.tu-picker--small .tu-picker__prefix [class*=tu-icon], .tu-picker--small .tu-picker__suffix [class*=tu-icon] {
  font-size: var(--tu-font-size-small, 12px);
}

.tu-picker--medium {
  font-size: var(--tu-font-size-medium, 14px);
  height: 32px;
}
.tu-picker--medium .tu-picker__input {
  height: 32px;
  line-height: 32px;
}

.tu-picker--medium .tu-picker__prefix, .tu-picker--medium .tu-picker__suffix {
  font-size: var(--tu-font-size-medium, 14px);
}
.tu-picker--medium .tu-picker__prefix [class*=tu-icon], .tu-picker--medium .tu-picker__suffix [class*=tu-icon] {
  font-size: var(--tu-font-size-medium, 14px);
}

.tu-picker--large {
  font-size: var(--tu-font-size-large, 14px);
  height: 36px;
}
.tu-picker--large .tu-picker__input {
  height: 36px;
  line-height: 36px;
}

.tu-picker--large .tu-picker__prefix, .tu-picker--large .tu-picker__suffix {
  font-size: var(--tu-font-size-large, 14px);
}
.tu-picker--large .tu-picker__prefix [class*=tu-icon], .tu-picker--large .tu-picker__suffix [class*=tu-icon] {
  font-size: var(--tu-font-size-large, 14px);
}