Returns or sets a value to determine whether a three-d border will be rendered around the tabs.
The ThreeD borders may not render in down-level browsers.
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