我試圖覆蓋并降低mat-form-field中的mat-select、mat-form-field中的datepicker和mat-input的高度: 我嘗試了很多方法，包括::ng-deep和ViewEncapsulation。沒有，只是運氣不好。

這是我的代碼:

<mat-form-field appearance="outline">
        <mat-label>mat select</mat-label>
        <mat-select formControlName="merch" (selectionChange)="merchTechnic()">
          <mat-option *ngFor="let merch of merches" [value]="merch">
            {{merch}}
          </mat-option>
        </mat-select>
</mat-form-field>

<mat-form-field appearance="outline">
      <input matInput [matDatepicker]="pickerA" [(ngModel)]="to" (dateChange)="dateChange()">
      <mat-datepicker-toggle matIconSuffix [for]="pickerA"></mat-datepicker-toggle>
      <mat-datepicker #pickerA color="warn"></mat-datepicker>
</mat-form-field>

<mat-form-field class="form-field" appearance="outline">
      <mat-label>searching</mat-label>
      <input matInput type="text" formControlName="words">
</mat-form-field>

謝謝你，