如何在Angular的ejs-dropdownlist中进行CSS定制

npm install @syncfusion/ej2-angular-dropdowns --save

import { Component, OnInit } from '@angular/core';
import { DropDownListComponent } from '@syncfusion/ej2-angular-dropdowns';

@Component({
  selector: 'app-dropdownlist',
  templateUrl: './dropdownlist.component.html',
  styleUrls: ['./dropdownlist.component.css']
})
export class DropdownlistComponent implements OnInit {
  // ...
}

<ejs-dropdownlist id="dropdownlist" [dataSource]="data" [fields]="fields"></ejs-dropdownlist>

#dropdownlist {
  width: 200px;
  height: 30px;
  background-color: #f2f2f2;
  border: 1px solid #ccc;
  border-radius: 4px;
  padding: 5px;
  font-size: 14px;
  color: #333;
}