Our current web sites are all 100% CSS, which means that there are absolutely:
• No inline styles - all styles are included in the CSS file so the XHTML file only contemns the main tags and the actual content of the page.
• No tables - I only use DIVs which reduce tremendously the amount of code required. Clean code means fast loading time and no incompatibility errors.
• Script-free mouse over (hover) features.
CSS is the best choice for a robust, clean and cross-browser code, that loads extremely fast and can be easily indexed by the search engine robots.