ichimatsu.css

@namespace url(http://www.w3.org/1999/xhtml);
@-moz-document url-prefix(data:image/),
regexp("(?:https?|chrome)://.*\.(?:jpe?g|png|gif|bmp|svg|webp|JPE?G|PNG|GIF|BMP|SVG|WEBP)([?#].*)?$") {
body {
background-image: url("data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAACAAAAAgCAAAAABWESUoAAAAHUlEQVQ4y2P4gQYeoAGGUQUjSgG6ALqGUQUjSgEAdjWwLh+tpFgAAAAASUVORK5CYII=") !important;
}
 
body > img[src][alt] {
box-shadow: 0px 0px 2px 1px navy;
}

}