.promo_band {
    position: absolute;
    left: 0;
    top: 1em;
    z-index: 1;
    background-color: #158b00;
    color: #fff;
    width: 50%;
    line-height: 40px;
    font-size: 20px;
    font-weight: 700;
    text-align: center;
    border: 1px;
    overflow: hidden;
    box-shadow: 0px 0 11px 2px rgba(0, 0, 0, 0.2);
}