<svg xmlns="http://www.w3.org/2000/svg" width="48" height="48" viewBox="0 0 48 48">
    <path d="M0 0h48v48h-48z" fill="none"/>
    <path fill-opacity=".3" d="M44 16v-12l-40 40h32v-28z"/>
    <path d="M40 20v16h4v-16h-4zm-16 24v-20l-20 20h20zm16 0h4v-4h-4v4z"/>
</svg>