@frontend_worker/search-selector/src/styles/mixins/select.less

《远程搜索+单选》组件区别于element-ui或iview组件库的select远程搜索， ①将头部显示的值和下拉选项显示的值独立开来， ②避免远程加载时头部默认值显示异常， ③支持插槽自定义 ④将搜索框值放置于下拉弹框里面

.select-item(@size-class, @item-class) {
    .@{item-class} {
        position: relative;
        margin: 0;
        line-height: normal;
        padding: 6px 14px;
        clear: both;
        color: @text-color;
        font-size: @font-size-small !important;
        white-space: nowrap;
        list-style: none;
        cursor: pointer;
        transition: background @transition-time @ease-in-out;

       &-filter-highlight {
           color: @error-color;
       }

        &:hover{
            background: @background-color-select-hover;
        }

        &-focus {
            background: @background-color-select-hover;
        }

        &-disabled {
            color: @btn-disable-color;
            cursor: @cursor-disabled;

            &:hover {
                color: @btn-disable-color;
                background-color: #fff;
                cursor: @cursor-disabled;
            }
        }

        &-selected ,&-selected:hover{
            color: @brand-color;
            //background: @selected-color;
        }

        &-selected&-focus {
            //background: shade(@selected-color, 10%);
        }

        &-divided{
            margin-top: 5px;
            border-top: 1px solid @border-color-split;
            &:before{
                // content: '';
                // height: 5px;
                // display: block;
                // margin: 0 -16px;
                // background-color: #fff;
                // position: relative;
                // top: -7px;
            }
        }

        &-enter{
            color: @primary-color;
            font-weight: bold;
            float: right;
        }
    }

    .@{size-class}-large .@{item-class} {
        padding: 7px 16px 8px;
        font-size: @font-size-base !important;
    }
    // http://browserhacks.com/
    // https://bugzilla.mozilla.org/show_bug.cgi?id=488725
    // fixed #1224 #1143 #1127
    @-moz-document url-prefix() {
        .@{item-class} {
            white-space: normal;
        }
    }
}