.fs-body-checkout-multi #fs-multipleAddressButton-container:before {
    content: "■【複数お届け先の設定】【お届け先削除】【商品の数量変更】は下記ボタンから。";
    display: block;
    width: 100%;
    margin: 0 0 0.5em;
    color:red;
}
rt {
    transform: translateY(0.1rem);
}
    @media(min-width: 390px) {
        .postage-comment-area {
            width: fit-content;
        }
        .postage-comment-area .item {
            display: table;
            width: 100%;
        }
        .postage-comment-area .area,
        .postage-comment-area .price {
            display: table-cell;
        }
        .postage-comment-area .area {
        }
        .postage-comment-area .price {
            text-align: right;
        }
    }