Moved points_flag into points_bar so that relative bottom is 0 in CSS. Changed overflow:hidden to :visible on #points_bar.
Refactor CSS points_bar section to give clarity about DOM hierarchy, with points_flag and points_fill inside
Wrote movePointsFlag function that successfully increases height in HTML. Issue remains of how to call that function after each turn; only works in Console.
Included movePointsFlag function in updateGame function, flagHeight now updates after each turn, woohoo