>>18641
No. The end result should look like this:

img[title="Djibouti"]{
background: url(data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAABEAAAAOCAYAAADJ7fe0AAAABGdBTUEAALGPC/xhBQAAAKdJREFUOE+FjtERwzAIQzNDL19doZtlt/x0mY7QMQhgiygYn3X3bKwgXTYRGVDZUZJ3jdFQ6/j+p1RF96DjqgBg91HSDRcWjCrIvs0eablWghtCYOHrpUN/rJZD8PFNaQu//T1dnvlDiQlFAHqdn4dvb9C9+0/4hjhQ4SW6F0VZVYjpOT+9JBdVIYYyrcQHKqpCDBcYURKGWlUQcDgy2XBT7Rl5V0S2CxirNQfoldixAAAAAElFTkSuQmCC)
}

I used Djibouti as example. The title is Djibouti (targets the html element of her flag with the selector), and the long code is generated from the image of Djibouti's flag with base64 encoding. In polru's case the target should be Russia, and the base64 encoding is made from the image of Ingria.
This way there is no need to store the png on site or elsewhere, and link it from there, the browser can draw it from that base64 data block.
There are online services to encode, for example:
https://www.base64encode.org/
Or can be done from Linux command line:

base64 ingria.png

But ofc, this is a suggestion. If you have Ingria uploaded already, and has the link to the image, and want to use that, use that.