diff --git a/qml/calculator/CalculatorStartPage.qml b/qml/calculator/CalculatorStartPage.qml
index 238d515..7eb0185 100644
--- a/qml/calculator/CalculatorStartPage.qml
+++ b/qml/calculator/CalculatorStartPage.qml
@@ -13,9 +13,12 @@ Page {
         color: settings.theme("PageBackgroundColor")
     }
 
+    property int itemHeight: heading.height + tickIntervalInfo.height + tickInterval.height + numCountInfo.height + numCount.height + minInfo.height + min.height + maxInfo.height + max.height + startButton.height
+    property int columnItems: 10
+
     Column {
         id: column
-        spacing: height / 40
+        spacing: (column.height - itemHeight) / columnItems
         width: parent.width
         anchors.fill: parent
         anchors.topMargin: parent.height * 0.02
@@ -23,14 +26,11 @@ Page {
 
         Label {
             id: heading
-            font.pixelSize: parent.width * 0.075
+            font.pixelSize: parent.width * 0.125
             text: "Calculator"
             color: settings.theme("PageTextColor")
             anchors {
-                left: parent.left
-                right: parent.right
-                leftMargin: parent.width * 0.05
-                rightMargin: parent.width * 0.05
+                horizontalCenter: parent.horizontalCenter
             }
         }
 
@@ -39,7 +39,9 @@ Page {
             text: "Interval:"
             color: settings.theme("PageTextColor")
             font.pixelSize: parent.height * 0.05
-            Layout.leftMargin: parent.width * 0.05
+            anchors {
+                horizontalCenter: parent.horizontalCenter
+            }
         }
 
 
@@ -63,7 +65,9 @@ Page {
             text: "Summands:"
             font.pixelSize: parent.height * 0.05
             color: settings.theme("PageTextColor")
-            Layout.leftMargin: parent.width * 0.05
+            anchors {
+                horizontalCenter: parent.horizontalCenter
+            }
         }
 
         TextField {
@@ -72,9 +76,12 @@ Page {
             placeholderText: "summands"
             validator: IntValidator {bottom: 1; top: 100000;}
             horizontalAlignment: Qt.AlignHCenter
-            Layout.fillWidth: true
-            Layout.leftMargin: parent.width * 0.05
-            Layout.rightMargin: parent.width * 0.05
+            anchors {
+                left: parent.left
+                right: parent.right
+                leftMargin: parent.width * 0.05
+                rightMargin: parent.width * 0.05
+            }
             Keys.onReturnPressed: root.start()
         }
 
@@ -83,7 +90,9 @@ Page {
             text: "Minimum:"
             font.pixelSize: parent.height * 0.05
             color: settings.theme("PageTextColor")
-            Layout.leftMargin: parent.width * 0.05
+            anchors {
+                horizontalCenter: parent.horizontalCenter
+            }
         }
 
         TextField {
@@ -92,9 +101,12 @@ Page {
             placeholderText: "minimum"
             validator: IntValidator {bottom: -100000; top: 100000;}
             horizontalAlignment: Qt.AlignHCenter
-            Layout.fillWidth: true
-            Layout.leftMargin: parent.width * 0.05
-            Layout.rightMargin: parent.width * 0.05
+            anchors {
+                left: parent.left
+                right: parent.right
+                leftMargin: parent.width * 0.05
+                rightMargin: parent.width * 0.05
+            }
             Keys.onReturnPressed: root.start()
         }
 
@@ -103,7 +115,9 @@ Page {
             text: "Maximum:"
             font.pixelSize: parent.height * 0.05
             color: settings.theme("PageTextColor")
-            Layout.leftMargin: parent.width * 0.05
+            anchors {
+                horizontalCenter: parent.horizontalCenter
+            }
         }
 
         TextField {
@@ -112,21 +126,25 @@ Page {
             placeholderText: "maximum"
             validator: IntValidator {bottom: -100000; top: 100000;}
             horizontalAlignment: Qt.AlignHCenter
-            Layout.fillWidth: true
-            Layout.leftMargin: parent.width * 0.05
-            Layout.rightMargin: parent.width * 0.05
-            Keys.onReturnPressed: root.start()
+            anchors {
+                left: parent.left
+                right: parent.right
+                leftMargin: parent.width * 0.05
+                rightMargin: parent.width * 0.05
+            }
         }
 
-        RoundButton {
+        GameButton {
             id: startButton
             text: "start"
             height: parent.width * 0.1
-            //width: height
-            //font.pixelSize: parent.width * 0.03
-            Layout.fillWidth: true
-            Layout.leftMargin: parent.width * 0.05
-            Layout.rightMargin: parent.width * 0.05
+            font.pixelSize: parent.width * 0.075
+            anchors {
+                left: parent.left
+                right: parent.right
+                leftMargin: parent.width * 0.05
+                rightMargin: parent.width * 0.05
+            }
             onClicked: {
                 root.start()
             }