<!-- License: MIT. Made by Microsoft: https://github.com/microsoft/fluentui-system-icons -->
<svg width="28px" height="28px" viewBox="0 0 28 28" fill="none" xmlns="http://www.w3.org/2000/svg">
<path d="M3 6.25C3 4.45507 4.45507 3 6.25 3H21.75C23.5449 3 25 4.45507 25 6.25V21.75C25 23.5449 23.5449 25 21.75 25H6.25C4.45507 25 3 23.5449 3 21.75V6.25ZM6.25 4.5C5.2835 4.5 4.5 5.2835 4.5 6.25V21.75C4.5 22.7165 5.2835 23.5 6.25 23.5H21.75C22.7165 23.5 23.5 22.7165 23.5 21.75V6.25C23.5 5.2835 22.7165 4.5 21.75 4.5H6.25Z" fill="#212121"/>
</svg>