Since WD came out I have had only one static site to do and used the placeholder with java script so that user could increase font size with their mouse without any problems. Would use stylesheets for most of my accessibility so that viewers could have control giving them high contrast colours with fonts and the ability to change the look of the site so WD is not the best editor for this area. Maybe you could get round this problem using both java script and extra stylesheets but to be honest I have not tried this route. I might have a try at this when I have some spare time to see if i can get it to work.