ant-design/style/components/select.less

@selectPrefixCls: ant-select;

@import "../mixins/iconfont";
//mixin
.selection__clear() {
  cursor: pointer;
  float: right;
  font-weight: bold;
}
.selected_icon() {
  position: relative;
  &:after {
    .iconfont-size-under-12px(9px);
    display: inline-block;
    content: '\e613';
    font-family: 'anticon';
    font-weight: bold;
    position: absolute;
    top: 6px;
    right: 0;
    background: tint(@primary-color, 90%);
    padding-right: 16px;
    color: @primary-color;
  }
}

.@{selectPrefixCls} {
  box-sizing: border-box;
  display: inline-block;
  margin: 0;
  position: relative;
  vertical-align: middle;
  color: #666;
  font-size: @font-size-base;

  ul, li {
    margin: 0;
    padding: 0;
    list-style: none;
  }

  > ul > li > a {
    padding: 0;
    background-color: #fff;
  }

  // arrow
  &-arrow {
    .iconfont-mixin();
    height: 26px;
    position: absolute;
    top: 1px;
    right: 1px;
    .iconfont-size-under-12px(10px);
    width: 26px;
    line-height: 26px;

    * {
      display: none;
    }

    &:before {
      content: '\e611';
      .ie-rotate(1);
      .rotate(90deg);
      transition: transform 0.2s ease;
    }
  }

  &-selection {
    outline: none;
    user-select: none;
    -webkit-user-select: none;

    box-sizing: border-box;
    display: block;

    background-color: #fff;
    border-radius: 6px;
    border: 1px solid #d9d9d9;
    .transition(all .3s @ease-in-out);

    &:hover {
      border-color: @primary-color;
    }
    &:active {
      border-color: shade(@primary-color, 5%);
    }
  }

  &-disabled {
    color: #ccc;
    cursor: not-allowed;
    pointer-events: none;
  }

  &-disabled &-selection {
    &:hover, &:active {
      border-color: #d9d9d9;
    }
  }

  &-selection--single {
    height: 28px;
    cursor: pointer;

    .@{selectPrefixCls}-selection__rendered {
      display: block;
      overflow: hidden;
      text-overflow: ellipsis;
      padding-left: 10px;
      padding-right: 20px;
      line-height: 26px;
    }

    .@{selectPrefixCls}-selection__clear {
      .selection__clear();
    }
  }

  &-disabled &-selection__choice__remove {
    color: #ccc;
    cursor: default;
    &:hover {
      color: #ccc;
    }
  }

  &-search--inline {
    float: left;

    .@{selectPrefixCls}-search__field {
      border: none;
      font-size: 100%;
      //margin-top: 5px;
      background: transparent;
      outline: 0;
    }
    > i {
      float: right;
    }
  }

  &-selection--multiple {
    min-height: 28px;
    cursor: text;

    .@{selectPrefixCls}-search--inline {
      width: auto;
      .@{selectPrefixCls}-search__field {
        width: 0.75em;
      }
    }

    .@{selectPrefixCls}-selection__rendered {
      //display: inline-block;
      overflow: hidden;
      text-overflow: ellipsis;
      padding-left: 4px;
      padding-bottom: 4px;
    }

    .@{selectPrefixCls}-selection__clear {
      .selection__clear();
      margin-top: 5px;
      margin-right: 10px;
    }

    > ul > li {
      margin-top: 4px;
      height: 20px;
      line-height: 20px;
    }

    .@{selectPrefixCls}-selection__choice {
      background-color: #f3f3f3;
      border-radius: 4px;
      cursor: default;
      float: left;
      padding: 0 8px;
      margin-right: 4px;
    }

    .@{selectPrefixCls}-selection__choice__remove {
      .iconfont-mixin();
      color: #919191;
      cursor: pointer;
      display: inline-block;
      font-weight: bold;
      .iconfont-size-under-12px(8px);
      padding: 0 0 0 4px;
      position: relative;
      top: -1px;
      left: 4px;
      &:hover {
        color: #333;
      }

      &:before {
        content: "\e61e";
      }
    }
  }

  .@{selectPrefixCls}-selection--multiple + .@{selectPrefixCls}-dropdown {
    .@{selectPrefixCls}-dropdown-menu-item {
      padding: 7px 33px 7px 16px;
    }
    .@{selectPrefixCls}-dropdown-menu-item-selected {
      .selected_icon();
    }
  }

  &-dropdown {
    display: none;
    background-color: white;
    border: 1px solid #d9d9d9;
    box-shadow: 0 0px 4px #d9d9d9;
    border-radius: 4px;
    box-sizing: border-box;
    z-index: 100;
    left: -9999px;
    top: -9999px;
    position: absolute;
    outline: none;

    &-menu {
      outline: none;
      margin-bottom: 0;
      padding-left: 0; // Override default ul/ol
      list-style: none;
      z-index: 9999;
      max-height: 250px;
      overflow: auto;

      > li {
        margin: 0;
        padding: 0;
      }

      & > &-item {
        position: relative;
        display: block;
        padding: 7px 16px;
        font-weight: normal;
        color: #666666;
        white-space: nowrap;
        cursor: pointer;

        &:hover, &-active, &-selected {
          background-color: tint(@primary-color, 90%) !important;
        }

        &-disabled {
          color: #ccc;
          cursor: not-allowed;
          pointer-events: none;

          &:hover {
            color: #ccc;
            background-color: #fff;
            cursor: not-allowed;
          }
        }

        &-divider {
          height: 1px;
          margin: 1px 0;
          overflow: hidden;
          background-color: #e5e5e5;
          line-height: 0;
        }
      }
    }
  }

  &-dropdown-container-open, &-open {
    .@{selectPrefixCls}-dropdown {
      display: block;
    }
  }

  &-search--dropdown {
    display: block;
    padding: 4px;
    .@{selectPrefixCls}-search__field {
      padding: 4px;
      width: 100%;
      box-sizing: border-box;
      border: 1px solid #d9d9d9;
      border-radius: 4px;
      outline: none;
    }
    &.@{selectPrefixCls}-search--hide {
      display: none;
    }
  }

  &-open {
    .@{selectPrefixCls}-arrow:before {
      .ie-rotate(3);
      .rotate(270deg);
    }
    .@{selectPrefixCls}-selection {
      .active();
    }
  }
  &-combobox {
    .@{selectPrefixCls}-arrow {
      display: none;
    }
    .@{selectPrefixCls}-search--inline {
      float: none;
    }
    .@{selectPrefixCls}-search__field {
      padding: 0 10px;
      width: 100%;
    }
    .@{selectPrefixCls}-selection__rendered {
      padding: 0;
    }
  }
}