.shop-banner-area{position: relative;}
.shop-banner-area .container:before {
    background: url(https://img.muukal.com/topic/halloween/icon/21.png) 0 0 / 100% 100%;
    content: "";
    width: 380px;
    height: 368px;
    right: 0;
    position: absolute;
    top: 0;
}