Using xhtml template I had found different issues:
1. I cannot change table class or style for items table.
in xhtml/form.ftl change "<table class="wwFormTable">"
2. I cannot change position of * for required fields to right from label
3. I cannot change align of TD for label (now is top and right)
4. Setting of class and style for form in simple/form.ftl is fruitless - words of designer in my company
5. In simple/label.ftl setting of class occurs twice.