.new {
    background: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' version='1.1' width='100px' height='50px'><rect x='0' y='0' width='100' height='50' fill='red' fill-opacity='0.02'/><text transform='translate(30, 40) rotate(-45)' fill='rgb(245,45,45)' fill-opacity='0.4' font-size='15'>NEW</text></svg>");
}