If you want to apply different styles for different folders on your Plone 3 site then this is what you should do:

1. look at source code of generated page and look for body tag and it should have some classes, one of those classes starts with section-..., that class tells you the folder that contains your page, note that page in root folder will not have this section-... class

2. when you have class names just make custom styles with CSS that will override the original and that's it, but make shore that classes definitions that override are bellow classes definitions that are being overridden in CSS file

This works for one level of folders, if you need to apply different styles to folders with more than one level of depth you need to override the getSectionFromURL, more about this you can find at Alex Clark's blog.

The new version of Oracle JDeveloper, Oracle ADF, and Oracle TopLink 11g shipped this month. With hundreds of new features, building Java EE 5.0-based Rich Enterprise Applications has never been easier.

Oracle JDeveloper and Oracle ADF 11g

Online Demos

This collection of online demos will take you through some of the key new features added to this version. For the full list of new features, see the new features document.

Step-by-Step Tutorials

Get started building your own applications by following the online Tutorials and Cue Cards, all with step-by-step instructions and explanations.

Developer Guides

Now that you understand the basics, read the complete guides to the ADF framework with the Fusion Developer's Guide, the Web User Interface Developer's Guide, and the Developer's Guide for Oracle Application Development Framework Mobile.

Sample Application

The Fusion Order Demo is a fully functional sample application with the source code included, so you can see JDeveloper and ADF 11g at work and learn how to develop your own applications.

Oracle TopLink 11g

Featuring JPA, Object to XML, and Grid support, the new Oracle TopLink 11g has gone production. Read the new Features Overview, and follow the new 11gTutorials.

More Information

For more information and to download the latest version visit the JDeveloper Page and the TopLink Page.

New Energy Efficient Chip Multi-threaded (CMT) Server with the Solaris OS Delivers Up to 4x Higher Performance and Costs Up to 80 Percent Less Than Competitive Systems

Tokyo, SANTA CLARA, CALIF. October 13, 2008 Sun Microsystems, Inc. (NASDAQ: JAVA) and Fujitsu Limited (TSE: 6702) today announced the SPARC Enterprise T5440 server, the first server to deliver the scalability and reliability of traditional midrange systems with the breakthrough performance and radical energy efficiency of the UltraSPARC T2 Plus architecture.

More information on the SPARC Enterprise T5440 server is available at http://www.sun.com/T5440 and http://www.fujitsu.com/sparcenterprise.

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I started working with Plone, at customizing themes. Plone is very interesting but also very complex CMS, that run on Zope application server written in Python. Styling is mostly done by CSS but there are also viewlets, which fragments of page that can be rearranged with configuration XML files.
So far I have not seen any Python code, but I am willing to learn.