.pencil-effect { background-image: url(photo.jpg); background-size: cover; background-position: center; } @supports (filter: invert(1)) and (background-blend-mode: difference) { .pencil-effect { background-image: url(photo.jpg), url(photo.jpg); background-blend-mode: difference; background-position: calc(50% - 1px) calc(50% - 1px), calc(50% + 1px) calc(50% + 1px); filter: brightness(2) invert(1) g
