@media only screen and (min-width:320px) and (max-width:991px) {
    .cam_discount .card-header {
        font-size: 22px;
        font-weight: 900;
        padding: 10px 35px;
    }

    .campaign_offer {
        margin-top: 40px;
        margin-bottom: 0;
    }

    .cam_price {
        font-size: 25px;
    }

    .office_address {
        width: 100%;
    }

    .campaign_title {
        font-size: 31px;
        margin-top: 25px;
        margin-bottom: 17px;
    }

    .cart_details {
        margin-bottom: 15px;
    }

    .campaign_content {
        display: block;
    }

    .row.order_by .col-sm-5 {
        order: 1;
    }

    .qty-cart .quantity {
        height: 35px;
    }

    .quantity .minus,
    .quantity .plus {
        height: 35px;
        line-height: 35px;
        width: 20px;
        font-size: 35px;
    }

    .quantity .plus {
        font-size: 22px;
    }

    .qty-cart {
        width: 70px;
    }

    .campaign_offer {
        font-size: 29px;
    }

}