<svg xmlns="http://www.w3.org/2000/svg" width="24" height="24" viewBox="0 0 24 24">
    <path d="M21.99 4c0-1.1-.89-2-1.99-2h-16c-1.1 0-2 .9-2 2v12c0 1.1.9 2 2 2h14l4 4-.01-18z"/>
    <path d="M0 0h24v24h-24z" fill="none"/>
</svg>