<svg xmlns="http://www.w3.org/2000/svg" width="18" height="18" viewBox="0 0 18 18">
    <path d="M0 0h18v18h-18z" fill="none"/>
    <path d="M.5 16h17l-8.5-15-8.5 15zm9.5-2h-2v-2h2v2zm0-3h-2v-4h2v4z"/>
</svg>