.product-banner-list__wrapper {}
.product-banner-list__list {
    display: flex;
    flex-direction: column;
}
.product-banner-list__item {
    flex: 0 0 auto;
    width: 100%;
    margin-bottom: 20px;
}
.product-banner-list__item:last-child {
    margin-bottom: 0;
}