<clr-dropdown [clrMenuPosition]="'top-left'">
<button class="dropdown-toggle btn btn-primary" type="button">
Dropdown
</button>
<div class="dropdown-menu">
<label class="dropdown-header">Dropdown header</label>
<a class="dropdown-item">Action 1</a>
<a class="dropdown-item">Action 2</a>
<div class="dropdown-divider"></div>
<a class="dropdown-item">Link 1</a>
<a class="dropdown-item">Link 2</a>
</div>
</clr-dropdown>