vant/packages/vant-css/src/picker.css

@import './common/var.css';

.van-picker {
  overflow: hidden;
  background-color: $white;

  &__toolbar {
    height: 40px;
    line-height: 40px;
    overflow: hidden;
    padding: 0 15px;
  }

  &__cancel {
    color: #3388FF;
    float: left;
  }

  &__confirm {
    color: #3388FF;
    float: right;
  }

  &__title {
    height: 40px;
    padding: 0 10px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    word-wrap: normal;
    word-break: break-all;
    text-align: center;
  }

  &__columns {
    position: relative;
    overflow: hidden;

    &--1 {
      .van-picker-column {
        width: 100%;
      }
    }

    &--2 {
      .van-picker-column {
        width: 50%;
      }
    }

    &--3 {
      .van-picker-column {
        width: 33.333%;
      }
    }

    &--4 {
      .van-picker-column {
        width: 25%;
      }
    }

    &--5 {
      .van-picker-column {
        width: 20%;
      }
    }
  }

  .van-picker-center-highlight {
    box-sizing: border-box;
    position: absolute;
    left: 0;
    width: 100%;
    top: 50%;
    margin-top: -18px;
    pointer-events: none;
  }

  .van-picker-center-highlight:before,
  .van-picker-center-highlight:after {
    content: '';
    position: absolute;
    height: 1px;
    width: 100%;
    background-color: #eaeaea;
    display: block;
    transform: scaleY(0.5);
  }

  .van-picker-center-highlight:before {
    left: 0;
    top: 0;
    bottom: auto;
    right: auto;
  }

  .van-picker-center-highlight:after {
    left: 0;
    bottom: 0;
    right: auto;
    top: auto;
  }

  &-column {
    font-size: 18px;
    overflow: hidden;
    position: relative;
    max-height: 100%;
    float: left;
    text-align: center;

    &__item {
      height: 44px;
      line-height: 44px;
      padding: 0 10px;
      white-space: nowrap;
      position: relative;
      overflow: hidden;
      text-overflow: ellipsis;
      color: #707274;
      left: 0;
      top: 0;
      width: 100%;
      box-sizing: border-box;
      transition-duration: .3s;

      &--selected {
        color: $black;
      }
    }
  }

  .picker-column-wrapper {
    transition-duration: 0.3s;
    transition-timing-function: ease-out;
  }

  .picker-column-wrapper.dragging,
  .picker-column-wrapper.dragging .picker-item {
    transition-duration: 0s;
  }
}