The DefaultStyle is the style which is applied to a button when not selected, or moused over. When set, DefaultStyle overrides UltraWebToolbar.DefaultStyle, on the UltraWebToolbar object. If the button is part of a TBButtonGroup, this style overrides the TBButtonGroup's TBButtonGroup.DefaultStyle. To force the UltraWebToolbar to your your own style, specify the name of your class in the CssClass property. To force the use of no style, specify "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