Souke/backend/web/sass/document/_form.scss

.document-form {
  .info-box {
    .info-box-text {
      font-size: 13px;
    }

    .info-box-number {
      font-size: 15px;
    }
  }

  #block-add-product {
    .input-price {
      text-align: center;
    }

    .input-group-quantity {
      .input-quantity {
        text-align: center;
      }
    }

    .total {
      .input-group {
        margin-bottom: 10px;
      }

      .btn {
        float: right;
      }
    }
  }

  #block-list-products {
    ul.product-order-meta {
      padding: 0px;
      margin: 0px;
      padding-left: 20px;

      li {
        color: gray;
        font-size: 11px;
      }
    }

    .input-group-edit-invoice-price {

    }

    .product-order-invoice-price-button-apply {
      display: none;

      .btn {
        display: block;
        width: 100%;
      }
    }

    .different-price {
      position: relative;
      top: 5px;
    }
  }
}