Asymmetrik/ngx-starter

<div class="sidebar-header" [class.card-header]="showInCard()">
    <h2>{{ headerText() }}</h2>
    <button
        class="btn-close ms-auto"
        type="button"
        aria-label="Close"
        container="body"
        ngbTooltip="Close"
        placement="bottom"
        (click)="open.set(false)"
    ></button>
</div>
<div class="sidebar-body" [class.card-body]="showInCard()">
    <ng-content />
</div>