GUI Move if a frames Visible = true if not then continue the normal action???

So I want the GUI button to move if a frames Visible = true but if it equals false then to continue as normal, this is what I have so far.

script.Parent.PrevPage.MouseButton1Click:connect(function()
	if script.Parent.Pages.Cover1.Visible == true then
	
		script.Parent.NextPage.Position = UDim2.new(
		0.5,
		120,
		0.5,
		-25)
		
		script.Parent.PrevPage.Sound:Play()
		
	else
		
		script.Page.Value = script.Page.Value - 1
		script.Parent.PrevPage.Sound:Play()
		
	end
	
end)