xxxxxxxxxx
#add viewBox="0 0 height width"
<svg
xmlns="http://www.w3.org/2000/svg" height="48" width="48" viewBox="0 0 48 48"
><g fill="#2F80ED"><path d="M9 42q-1.2 0-2.1-.9Q6 40.2 6 39V9q0-1.2.9-2.1Q7.8 6 9 6h30q1.2 0 2.1.9.9.9.9 2.1v30q0 1.2-.9 2.1-.9.9-2.1.9Zm0-3h30V9H9v30Zm2.8-4.85h24.45l-7.35-9.8-6.6 8.55-4.65-6.35ZM9 39V9v30Z" />
</g></svg>
#in css file
svg{
width:20px;
height:20px;
}