GINKA/style.css

h2 .mw-headline::before {
    content: "\00A0";
    background: url("https://i2.hdslb.com/bfs/archive/ca394cfb6ea2fb3ff0dc2f808e904eab98d08ad0.jpg") center/contain no-repeat;
    display: inline-block;
    width: 1.4em;
}