protected override void OnSizeChanged(EventArgs e) {
            if (maxSize == false && this.WindowState == FormWindowState.Maximized) {
                mainContent.Width = this.Width - 35;
                mainContent.Height = this.Height - 200;
                maxSize = true;
                return;
            } else if (maxSize == true) {
                mainContent.Width = 467;
                mainContent.Height = 419;
                maxSize = false;
                return;
            }
        }