<div class="form-group">
   <label for="exampleFormControlTextarea1">textarea</label>
   <textarea class="form-control" id="exampleFormControlTextarea1" rows="3"></textarea>
</div>

<div class="form-group row align-items-center">
   <div class="col-sm-3 col-4">
      <label class="col-form-label">Description</label>
   </div>
   <div class="col-sm-9 col-8">
      <textarea class="form-control" id="horizontalTextarea" rows="3" placeholder="Textarea"></textarea>
   </div>
</div>

<div class="form-label-group">
   <textarea class="form-control" id="exampleFormControlTextarea2" rows="4"
      placeholder="Label in Textarea"></textarea>
   <label>Textarea</label>
</div>

<div class="form-label-group mb-0">
   <textarea data-length="20" class="form-control" id="exampleFormControlTextarea3" rows="3"
      placeholder="Counter"></textarea>
   <label>Counter</label>
</div>