// iPhone 8 - each view is 220
        if (UIScreen.main.bounds.height == 667.0) {
            for constraint in self.backgroundChartView.constraints {
                if constraint.identifier == "chartHeightConstraint" {
                    constraint.constant = 220
                }
            }

            for constraint in self.tableViewBackground.constraints {
                if constraint.identifier == "tableHeightConstraint" {

                    constraint.constant = 220
                }
            }
        }

        // iPhone 8 Plus/ iPhone XS - each view is 260
        if (UIScreen.main.bounds.height == 736.0 || UIScreen.main.bounds.height == 812.0) {
            for constraint in self.backgroundChartView.constraints {
                if constraint.identifier == "chartHeightConstraint" {
                    constraint.constant = 260
                }
            }

            for constraint in self.tableViewBackground.constraints {
                if constraint.identifier == "tableHeightConstraint" {

                    constraint.constant = 260
                }
            }
        }

        // update sublayouts
        self.backgroundChartView.layoutIfNeeded()
        self.tableViewBackground.layoutIfNeeded()