docbook stuff

[Mlacage aol com]

hi

i had two small questions on docbook: i am pretty sure someone here knows 
this.
1) how can i escape tags ? ie: i wish to display <tag> and docbook tries to 
interpret this tag as a standard one and as it does not exist, errors are 
displayed. 
ex: <para> this special tag <foo> is used to display that </para>
2) what i use is the docbook.css cascading style sheet copied in the target 
directry after html conversion (throuhg db2html) ? none of the html pages 
generated by jade/db2html have references to this style sheet. Thus, it has 
no use.

Thanks for answers
Mathieu