public static Storyboard HorizonLessenShowSb(this FrameworkElement target)
{
var sb = new Storyboard();
sb.AddEasyDoubleAnime(target, target.ActualWidth, 0, 0.3, "width");
sb.AddEasyThicknessAnime(target, new Thickness(2, 0, 2, 0), new Thickness(0), 0.3, "margin");
return(sb);
}
