.sale::before {
    z-index: 1;
    content: "Sale";
    position: absolute;
    top: 10px;
    left: 10px;
    background: #ff4d4d;
    color: #fff;
    padding: 5px 15px;
    font-size: 14px;
    font-weight: bold;
    text-transform: uppercase;
    border-radius: 4px;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.2);
}