marker-hierarchy attribute

Whether to create a "hierarchy" of elements in the list. HTML doesn't have this option or anything like it, so the best thing to do is illustrate the difference.

No Hierachy	Hierachy
1. Item 1 2. Item 2 1. Item 3.1 2. Item 3.2	1. Item 1 2. Item 2 3.1. Item 3.1 3.2. Item 3.2

ol.hierachical { marker-hierarchy:true; marker-hierarchy-separator:'.'; }