Index: binaries/data/mods/mod/gui/common/utilities.js
===================================================================
--- binaries/data/mods/mod/gui/common/utilities.js
+++ binaries/data/mods/mod/gui/common/utilities.js
@@ -1,35 +1,56 @@
-function distributeButtonsHorizontally(button, captions)
+function packButtonsHorizontally(buttons, yLevel)
 {
-	const y1 = "100%-46";
-	const y2 = "100%-18";
-	switch (captions.length)
+	// Layout dimensions
+	const padding = 18; // px
+	const linePadding = 5; // px
+	const margin = 5; // px
+	const width = +((100 / buttons.length).toFixed()); // %
+
+	let maxLineHeight = -Infinity;
+
+	for (let i = 0; i < buttons.length; ++i)
+	{
+		const leftOffset = i == 0 ? padding : margin;
+		const rightOffset = i == buttons.length - 1 ? padding : margin;
+
+		const size = buttons[i].size;
+
+		size.rtop = yLevel;
+		size.top = -padding;
+
+		size.rbottom = yLevel;
+		size.bottom = -padding;
+
+		size.rleft = width * i;
+		size.left = leftOffset;
+
+		size.rright = width * (i + 1);
+		size.right = -rightOffset;
+
+		buttons[i].size = size;
+
+		maxLineHeight = Math.max(buttons[i].getTextSize().height, maxLineHeight);
+	}
+
+	for (let button of buttons)
 	{
-	case 1:
-		button[0].size = "18 " + y1 + " 100%-18 " + y2;
-		break;
-	case 2:
-		button[0].size = "18 " + y1 + " 50%-5 " + y2;
-		button[1].size = "50%+5 " + y1 + " 100%-18 " + y2;
-		break;
-	case 3:
-		button[0].size = "18 " + y1 + " 33%-5 " + y2;
-		button[1].size = "33%+5 " + y1 + " 66%-5 " + y2;
-		button[2].size = "66%+5 " + y1 + " 100%-18 " + y2;
-		break;
+		const size = button.size;
+		size.top -= maxLineHeight + (2 * linePadding);
+		button.size = size;
 	}
 }
 
-function setButtonCaptionsAndVisibitily(button, captions, cancelHotkey, name)
+function setButtonCaptionsAndVisibitily(buttons, captions, cancelHotkey, name)
 {
 	captions.forEach((caption, i) => {
-		button[i] = Engine.GetGUIObjectByName(name + (i + 1));
-		button[i].caption = caption;
-		button[i].hidden = false;
-		button[i].onPress = () => {
+		buttons[i] = Engine.GetGUIObjectByName(name + (i + 1));
+		buttons[i].caption = caption;
+		buttons[i].hidden = false;
+		buttons[i].onPress = () => {
 			Engine.PopGuiPage(i);
 		};
 
 		if (i == 0)
-			cancelHotkey.onPress = button[i].onPress;
+			cancelHotkey.onPress = buttons[i].onPress;
 	});
 }
Index: binaries/data/mods/mod/gui/msgbox/msgbox.js
===================================================================
--- binaries/data/mods/mod/gui/msgbox/msgbox.js
+++ binaries/data/mods/mod/gui/msgbox/msgbox.js
@@ -26,5 +26,5 @@
 
 	let mbButton = [];
 	setButtonCaptionsAndVisibitily(mbButton, captions, mbCancelHotkey, "mbButton");
-	distributeButtonsHorizontally(mbButton, captions);
+	packButtonsHorizontally(mbButton, 100);
 }
Index: binaries/data/mods/mod/gui/timedconfirmation/timedconfirmation.js
===================================================================
--- binaries/data/mods/mod/gui/timedconfirmation/timedconfirmation.js
+++ binaries/data/mods/mod/gui/timedconfirmation/timedconfirmation.js
@@ -47,7 +47,7 @@
 
 		const button = [];
 		setButtonCaptionsAndVisibitily(button, captions, cancelHotkey, "tmcButton");
-		distributeButtonsHorizontally(button, captions);
+		packButtonsHorizontally(button, 100);
 	}
 
 	onTick()