In 0.7 all the core stylesheets have been combined into just one: e107.css in the e107_files directory. You may wish to override the core style classes in this file and define them yourself. To do so, copy the css from the file and place it into your themes style.css. Next, in your theme.php, place:

$no_core_css = TRUE;

This will tell the core not to output the to the e107.css. This way visitors browsers will only be requesting one external stylesheet - style.css in your themes folder.

We hope to be removing the core style sheet completely in a future release - so now is a good time to copy the styles to your themes style.css and override the core stylesheet as described above.