HTML help
Advantages of documentation that is written using only HTML and CSS for formatting include:
- Independent of operating system and browser
- Cheap and easy to distribute (typically delivered over the Internet)
- Relatively simple to implement
However, some problems exist:
- Page formatting is difficult and limited
- If delivered over the Internet, large graphics take a relatively long time to download
- It is not suitable for extended reading (this applies to all forms of online help)
- Navigation and search features are limited. (This can be overcome using Microsoft compiled HTML, WebHelp or other formats.)
From a structural perspective, many similarities exist between HTML help and a web site (and so HTML help is sometimes called 'web help' or 'web-based help'). However, typically they serve different purposes.
See also 
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