ant-design/components/select/style/index.less

@import '../../style/themes/index';
@import '../../style/mixins/index';
@import '../../input/style/mixin';

@import './single';
@import './multiple';

@select-prefix-cls: ~'@{ant-prefix}-select';
@select-height-without-border: @input-height-base - 2 * @border-width-base;

.select-selector() {
  position: relative;
  background-color: @select-background;
  border: @border-width-base @border-style-base @select-border-color;
  border-radius: @border-radius-base;
  transition: all 0.3s @ease-in-out;

  input {
    cursor: pointer;
  }

  .@{select-prefix-cls}-show-search& {
    input {
      cursor: auto;
    }
  }

  .@{select-prefix-cls}-focused& {
    .active();
  }

  .@{select-prefix-cls}-disabled& {
    color: @disabled-color;
    background: @input-disabled-bg;
    cursor: not-allowed;

    input {
      cursor: not-allowed;
    }
  }
}

/* Reset search input style */
.select-search-input-without-border() {
  .@{select-prefix-cls}-selection-search-input {
    background: transparent;
    border: none;
    outline: none;
  }
}

.@{select-prefix-cls} {
  .reset-component;

  position: relative;
  display: inline-block;

  &:not(.@{select-prefix-cls}-disabled):hover &-selector {
    .hover();
  }

  &-rtl {
    direction: rtl;
  }

  // ======================== Selection ========================
  &-selection-item {
    overflow: hidden;
    white-space: nowrap;
    text-overflow: ellipsis;
  }

  // ======================= Placeholder =======================
  &-selection-placeholder {
    overflow: hidden;
    white-space: nowrap;
    text-overflow: ellipsis;
    opacity: 0.4;
  }

  // ========================== Arrow ==========================
  &-arrow {
    .iconfont-mixin();

    position: absolute;
    top: 53%;
    right: @control-padding-horizontal - 1px;
    width: @font-size-sm;
    height: @font-size-sm;
    margin-top: -@font-size-sm / 2;
    color: @disabled-color;
    font-size: @font-size-sm;
    line-height: 1;
    text-align: center;
    // transform-origin: 50% 50%;
    pointer-events: none;

    .anticon {
      vertical-align: top;
      transition: transform 0.3s;

      > svg {
        vertical-align: top;
      }

      .@{select-prefix-cls}-open &.anticon-down {
        transform: rotate(180deg);
      }
    }

    .@{select-prefix-cls}-rtl & {
      right: initial;
      left: @control-padding-horizontal - 1px;
    }
  }

  // ========================== Clear ==========================
  &-clear {
    position: absolute;
    top: 50%;
    right: @control-padding-horizontal - 1px;
    z-index: 1;
    display: inline-block;
    width: @font-size-sm;
    height: @font-size-sm;
    margin-top: -@font-size-sm / 2;
    color: @disabled-color;
    font-size: @font-size-sm;
    font-style: normal;
    line-height: 1;
    text-align: center;
    text-transform: none;
    background: @select-clear-background;
    cursor: pointer;
    opacity: 0;
    transition: color 0.3s ease, opacity 0.15s ease;
    text-rendering: auto;
    &::before {
      display: block;
    }
    &:hover {
      color: @text-color-secondary;
    }

    .@{select-prefix-cls}:hover & {
      opacity: 1;
    }

    .@{select-prefix-cls}-rtl & {
      right: initial;
      left: @control-padding-horizontal - 1px;
    }
  }

  // ========================== Popup ==========================
  &-dropdown {
    .reset-component;

    &-rtl {
      direction: rtl;
    }
    position: absolute;
    top: -9999px;
    left: -9999px;
    z-index: @zindex-dropdown;
    box-sizing: border-box;
    overflow: hidden;
    font-size: @font-size-base;
    // Fix select render lag of long text in chrome
    // https://github.com/ant-design/ant-design/issues/11456
    // https://github.com/ant-design/ant-design/issues/11843
    font-variant: initial;
    background-color: @select-dropdown-bg;
    border-radius: @border-radius-base;
    outline: none;
    box-shadow: @box-shadow-base;

    &.slide-up-enter.slide-up-enter-active&-placement-bottomLeft,
    &.slide-up-appear.slide-up-appear-active&-placement-bottomLeft {
      animation-name: antSlideUpIn;
    }

    &.slide-up-enter.slide-up-enter-active&-placement-topLeft,
    &.slide-up-appear.slide-up-appear-active&-placement-topLeft {
      animation-name: antSlideDownIn;
    }

    &.slide-up-leave.slide-up-leave-active&-placement-bottomLeft {
      animation-name: antSlideUpOut;
    }

    &.slide-up-leave.slide-up-leave-active&-placement-topLeft {
      animation-name: antSlideDownOut;
    }

    &-hidden {
      display: none;
    }
  }

  // ========================= Options =========================
  .item() {
    position: relative;
    display: block;
    min-height: 32px;
    padding: @select-dropdown-vertical-padding @control-padding-horizontal;
    color: @text-color;
    font-weight: normal;
    font-size: @select-dropdown-font-size;
    line-height: @select-dropdown-line-height;
  }

  &-item-empty {
    .item();
  }

  &-item {
    .item();

    cursor: pointer;
    transition: background 0.3s ease;

    // =========== Group ============
    &-group {
      color: @text-color-secondary;
      font-size: @font-size-sm;
    }

    // =========== Option ===========
    &-option {
      display: flex;

      &-content {
        flex: auto;
        overflow: hidden;
        white-space: nowrap;
        text-overflow: ellipsis;
      }

      &-state {
        flex: none;
      }

      &-active:not(&-disabled) {
        background-color: @select-item-active-bg;
      }

      &-selected:not(&-disabled) {
        color: @text-color;
        font-weight: @select-item-selected-font-weight;
        background-color: @select-item-selected-bg;

        .@{select-prefix-cls}-item-option-state {
          color: @primary-color;
        }
      }

      &-disabled {
        color: @disabled-color;
        cursor: not-allowed;
      }

      &-grouped {
        padding-left: @control-padding-horizontal * 2;
      }
    }
  }

  // ============================================================
  // ==                          Size                          ==
  // ============================================================
  &-lg {
    font-size: @font-size-lg;
  }
}