When set, DefaultStyle overrides UltraWebToolbar.DefaultStyle, on the UltraWebToolbar object. Developers may force the UltraWebToolbar to use their own style through specifying the name of their CSS (Cascading Style Sheets) class in the CssClass property. To force no style use, specify a value of "none" for the CssClass property.
Target Platforms: Windows 10, Windows 8.1, Windows 8, Windows 7, Windows Vista SP1 or later, Windows XP SP3, Windows Server 2008 (Server Core not supported), Windows Server 2008 R2 (Server Core supported with SP1 or later), Windows Server 2003 SP2