YAML stands for "Yet Another Multicolumn Layout" and is a XHTML and CSS framework for rapidly creating standards based web sites.

It supports a very large range of web browsers and therefore saves a lot of time in tracking bugs in the CSS rendering of different browsers.

The advantages of using a framework is that is has been thoroughly tested over a long period of time and benefits from the feedback of those using the framework.

Documentation is available for the project in English and German.