模拟多条件搜索（淘宝，京东）

HTML

<ul class="select">
                            <li class="select-list" *ngFor="let panelItem of filterItems;let index=index;">
                                <dl id="select{{index}}">
                                    <dt>{{panelItem.title}}：</dt>                                    
                                    <dd *ngFor="let item of panelItem.items"><a href="javascript:;" (click)="selectItem($event.target)">{{item}}</a></dd>
                                </dl>
                            </li>                           
                        </ul>

 JS

 selectItem(obj): void {
        if ($(obj).parent().hasClass("selected")) {
            $(obj).parent().removeClass("selected");
        } else {
            $(obj).parent().addClass("selected");
        }
    }

CSS

.button-list-yw-button {
    margin-right: 8px;
}

mat-form-field {
    padding: 10px;
}

.fa-refresh {
    width: 1em;
    height: 1em;
    border-radius: 50%;
}

.headers-align .mat-expansion-panel-header-title,
.headers-align .mat-expansion-panel-header-description {
    flex-basis: 0;
}

.headers-align .mat-expansion-panel-header-description {
    justify-content: space-between;
    align-items: center;
}

mat-form-field {
    margin-right: 12px;
}

.check-section {
    display: flex;
    align-content: center;
    align-items: center;
    height: 60px;
    flex-wrap: wrap;
}

.check-margin {
    margin: 10px;
}

.example-section {
    display: flex;
    align-content: center;
    align-items: center;
    height: 60px;
}

    .example-section mat-form-field {
        width: 45%;
    }

.example-margin {
    margin: 10px;
}

/*.mat-expansion-panel-header {
    height: 30px !important;
}*/

mat-accordion .mat-expansion-panel-body {
    padding: 0 24px !important;
}

.mat-action-row {
    padding: 0 8px 0 24px;
}

.mdc-chip-set {
    padding: 0 !important;
}

.mat-form-field-wrapper {
    padding: 0 !important;
}

mat-accordion .mat-form-field {
    padding: 0 !important;
}

.mat-expansion-panel-spacing {
    margin: 0px;
}

.select, .select * {
    margin: 0;
    padding: 0;
    list-style-type: none;
}

a, img {
    border: 0;
}

body {
    font: 12px/180% Arial, Helvetica, sans-serif, "新宋体";
}
/* select */
.select {
    padding: 5px 10px;
    /*border: #ddd 1px solid;*/
    border-radius: 4px;
    /*margin: 5% auto;*/
    font-size: 12px
}

    .select li {
        list-style: none;
        padding: 10px 0 5px 100px
    }

    .select .select-list {
        border-bottom: #eee 1px dashed
    }

    .select dl {
        zoom: 1;
        position: relative;
        line-height: 24px;
    }

        .select dl:after {
            content: " ";
            display: block;
            clear: both;
            height: 0;
            overflow: hidden
        }

    .select dt {
        width: 126px;
        margin-bottom: 5px;
        position: absolute;
        top: 0;
        left: -100px;
        text-align: right;
        color: #666;
        height: 24px;
        line-height: 24px;
    }

        .select dt + dd {
            margin-left: 20px;
        }

    .select dd {
        float: left;
        display: inline;
        /*margin: 0 0 5px 5px;*/
        padding: 0 5px;
    }

    .select a {
        display: inline-block;
        white-space: nowrap;
        /*height: 24px;*/
        padding: 0 5px;
        text-decoration: none;
        color: #039;
        border-radius: 2px;
    }

        .select a:hover {
            color: #5a6bf3;
            background-color: #f3edc2;
        }

    .select .selected a {
        color: #fff;
        background-color: #5a6bf3;
    }

效果