XF 2.2 Adding image in user banner doesn't work

[Galleo]

.myBadge
{
text-indent: -10000em;
background: url("path/to/image.png") no-repeat;
height: 40px;
width: 40px;
}

I take all the right steps, I insert the custom banner name without the dot and give the banner a title, but nothing I do gets the image to show up.