Code Style: Sans serif font sampler and comparison: Here’s a great article that answers a perennial question: what fonts can I use in my CSS?
Font selection for the Web should be based on a generic font family to ensure an appropriate type style is rendered in any circumstances. Specific named fonts can then be declared in order of preference and tailored for specific platforms, but which to choose? This article compares the most common fonts for Windows, Mac and Unix family systems.
Not surprisingly, Arial was the big winner.