public IEnumerable <string> BuildCssClasses(Breakpoint breakpoint) { if (Direction != null) { yield return(Direction.BuildCssClass(breakpoint)); } if (JustifyContent != FlexJustifyContent.None) { yield return(JustifyContent.ToCssClass(breakpoint)); } if (ItemsAlignment != FlexAlignment.None) { yield return(ItemsAlignment.ToCssClass(FlexAlignmentScope.Items, breakpoint)); } if (Wrap != null) { yield return(Wrap.BuildCssClass(breakpoint)); } if (ContentAlignment != FlexContentAlignment.None) { yield return(ContentAlignment.ToCssClass(breakpoint)); } }