xtratabcontrol控件的标签样式--文本的宽高

Skin skin_ = TabSkins.GetSkin(DevExpress.LookAndFeel.UserLookAndFeel.Default.ActiveLookAndFeel);
            SkinElement element = skin_[TabSkins.SkinTabHeader];
            element.Properties["AllowTouch"] = false;
            element.ContentMargins.Top = 7;
            element.ContentMargins.Bottom = 7;
            element.ContentMargins.Left = 30;
            DXtrtable.LayoutChanged();