An <emphasize> isn't a tag you can assign a class or id to. An emphasize is a tag to make the text italic, so assigning a class to it would be rather meaningless.
Eivind, there may well be instances where you want one emphasize tag to appear different than another (perhaps a color, or font weight change. So, it is a valid request.
XML Tag Documentation: http://ez.no/ez_publish/documentation/reference/xml_tags
Alex
[ bald_technologist on the IRC channel (irc.freenode.net): #eZpublish ]
Thanks, i tried it but tag <em class="my_css_class">Something</em> automaticaly replaces with tag <emphatsize class="my_css_class">Something</emphatsize> after i click publish button, and my_css_class doesn't applys to "Something"
Alex: Of course, sorry, I didn't think of that. Even though in that case I would create a span, and apply both the italic and the color to that in stead.
This issue may be due to many of the templates in design/standard/templates/content/datatype/view/ezxmltags missing the code required to produce the class attribute in the output.
It looks as if this code is only availiale for table tags (table.tpl, th.tpl and td.tpl)
It appears that this has been added in to the SVN version http://pubsvn.ez.no/websvn/listing.php?repname=nextgen&path=%2Ftrunk%2Fdesign%2Fstandard%2Ftemplates%2Fcontent%2Fdatatype%2Fview%2Fezxmltags%2F&rev=0&sc=1
The files from above location should be able to be copied over your existing ones.