Table header defined as sticky header overlays option list o

Expected behavior

In our application we have a similar situation as shown in Figure 1: At the top there is a filter area with some selects, underneath there is, among other things, a table whose header is defined as a 'sticky header'. The option list of the selects may not be overlaid by the sticky header of the table.

Actual behavior

When using a select, the option list of this select is partially hidden by the header of the table - please see Figure 2. What options are there to solve this problem? If the table header is defined as non-sticky, the two components will behave correctly. However, this variant is not practicable for us - we definitely need a 'sticky header' for the table.

Resources (screenshots, code snippets etc.)

Figure 1:

Figure 2:

import { Component } from '@angular/core';

@Component({
  selector: 'app-root',
  templateUrl: './app.component.html',
  styleUrls: ['./app.component.scss']
})
export class AppComponent {

  selectElements: any = [
    {id: 1, code: 'Aaaaaaaa'},
    {id: 2, code: 'Bbbbbbbb'},
    {id: 3, code: 'Cccccccc'},
    {id: 4, code: 'Dddddddd'},
    {id: 5, code: 'Eeeeeeee'},
    {id: 6, code: 'Ffffffff'},
    {id: 7, code: 'Gggggggg'},
    {id: 8, code: 'Hhhhhhhh'},
    {id: 9, code: 'Iiiiiiii'}
  ];
  tableHeaderElements = ['ID', 'FIRST', 'SECOND'];
  tableRowElements: any = [
    {id: 1, first: 'Mark', last: 'Otto'},
    {id: 2, first: 'Jacob', last: 'Philipp'},
    {id: 3, first: 'Larry', last: 'Thomas'},
    {id: 4, first: 'Alexander', last: 'Gustavo'},
    {id: 5, first: 'Maria', last: 'Josefa'},
    {id: 6, first: 'Miriam', last: 'Susan'},
    {id: 7, first: 'Jonas', last: 'Frank'},
    {id: 8, first: 'Chiara', last: 'Marie'},
    {id: 9, first: 'Kira', last: 'Helena'}
  ];
}

<mdb-card-text >
  <div class="d-flex justify-content-around">
    <mdb-select-2 class="md-form" label="selectElements" placeholder="Please choose an option ..." 
                        [dropdownClass]="'mdb-select-dropdown-colorful mdb-select-dropdown-dark'" style="width: 20.0rem;">
      <mdb-select-option *ngFor="let el of selectElements" [value]="el.id">{{ el.code }}</mdb-select-option>
    </mdb-select-2>
  </div>
</mdb-card-text>
<mdb-card-text>
  <table mdbTable mdbTableScroll mdbTableEditor scrollY="true" maxHeight="250" striped="true" bordered="true" borderless="true" 
                    stickyHeader= "true" stickyHeaderBgColor="#000000" stickyHeaderTextColor="#ffffff">
    <thead class="text-center">
      <tr>
        <th *ngFor="let el of tableHeaderElements">{{el}}</th>
      </tr>
    </thead>
    <tbody class="text-center">
      <!--template *ngFor="let el of tableRowElements; let ix = index" -->
      <ng-template ngFor let-el [ngForOf]="tableRowElements" let-ix="index">
      <tr>
        <td>
          <span contenteditable="true">{{el.id}}</span>
        </td>
        <td>
          <span contenteditable="true">{{el.first}}</span>
        </td>
        <td>
          <span contenteditable="true">{{el.last}}</span>
        </td>
      </tr>
      </ng-template>
    </tbody>
  </table>
</mdb-card-text>