I am having some relatively minor difficulties getting some of my node content to display nicely with the Pixture Reloaded theme. Specifically, I would like to specify more noticeable differences between h2, h3, and h4 tags (as someone whose initial experience with website CMS was with MediaWiki, I tend not to use h1 tags in my nodes), and to extend Pixture Reloaded's beautiful "zebra stripes" to tables created inside of nodes (it already applies them to tables embedded in the CMS, such as the table that contains a list of attached documents).

In instances where I have nested topics, I would like to make top-, mid-, and bottom-level category headings more apparent to visitors. To adjust the heading tags, I tried modifying the style.css file associated with the Pixture Reloaded theme with some simple changes:

h2 {
  font-size: 1.5em;
  font-family: Times, TimesNR, serif;
  font-variant: small-caps;
}
h3 {
  font-size: 1.25em;
  font-family: Times, TimesNR, serif;
}
h4 {
  font-size: 1em;
  font-family: Times, TimesNR, serif;
  font-style: oblique;
}

However, none of these changes seem to affect how the elements are actually displayed. I've not tried to make many changes to Drupal themes before, so I recognize that I might be missing something basic. Nothing I encountered in other support requests or the help files indicated that I had overlooked anything, though. Is it not possible to standardize the way content is displayed in nodes with the theme style sheets (i.e. do I have to manually specify the h2 tags should be displayed at 1.5em with serif font in small caps inside each article/node)?

For an example of why I would like to make the differences between h2, h3, and h4 tags more obvious and my failure to do so thus far by editing styles.css, see: http://www.acontrario.org/node/335

The other issue I have had is with the "zebra stripes" on tables. I find them incredibly helpful, as I frequently display large amounts of information in tabular format. I noticed that Pixture Reloaded actually generates tables such as the comments and file attachments with stripes, but--for some reason--does not display the tables I create inside my nodes with such stripes (for an example of why "zebra stripes" would be a wonderful thing to include in tables, and of the fact that they are not presently included, see: http://www.acontrario.org/gitmo#Human_Rights_Organizations). I can't quite figure out why this is the case, or how to change it. Would I have to manually insert class="odd" and class="even" inside each tr element to get this effect? In other words, is the absence of the "zebra stripes" an intentional design feature of the Pixture Reloaded theme or did I screw something up?

Thanks for the help!