I have to thank you a thousand times for this!
I was ruminating and ruminating
With those proposals it works as desired … below my working HTML code.
<div class="d-flex justify-content-center section" style="height: 100px;">
<div class="input-group mb-3 input-group-sm rounded-pill overflow-hidden border w-50 my-auto">
<input virtualkeyboardpolicy="manual" contenteditable type="text" class="form-control hide-focus border-0"
placeholder="...." aria-label="Username" style="height: 40px; font-size: 20px;" tabindex="1">
</div>
</div>