Hi,
The <a> tag is not selectable as for example <img> tag in the FCK Editor v 2.6.x (this version of FCK Editor is used in the Kentico 5.0). That is a reason why style you have defined is not supported by FCKEditor.
For more details please take a look here:
http://www.mail-archive.com/fckeditor-trac@lists.sourceforge.net/msg01177.html
This feature is supported in FCKEditor v3.
FCKEditor v3 (CKEditor) will be integrated in KenticoCMS since v6.0:
http://www.kentico.com/cms-asp-net-features/Roadmap.aspxBest regards,
Ivana Tomanickova