Zoho Wiki CSS Customization
It has been quite some time since Zoho Wiki supported CSS Customization. This feature allows you to customize the look of your wiki pages. You can define your own styles, change the styling of existing elements or hide elements you don’t need.
Here are some nice elaborate customization of Zoho Wiki.
http://vbmacros.wiki.zoho.com/
The above customizations have been done by my colleagues. Let me know if you come across other good customizations of Zoho Wiki.
One thing I would like to see in Zoho Wiki is the ability to edit the CSS online and preview it before updating as in Blogger. Right now it is quite cumbersome to make changes to an already customized CSS. And it is actually very risky to make changes, without any preview, on a live Wiki.
Meanwhile, Zoho Wiki has announced some new features.