-html   write an html file (see 'man perl2web' for many options)
         Note: when -html is used, no indentation or formatting are done.
         Hint: try perltidy -html -css=mystyle.css filename.pl
         and edit mystyle.css to change the appearance of filename.html.
         -nnn gives line numbers
         -pre only writes out <pre>..</pre> code section