How to start ordered list from 2 not 1 with w3c validity and IE 6 compatibility?

Question

How to start ordered list from 2 not 1?

with all browser compatibility including IE6 and html css should bevalid

Answer 1

This can be done via HTML directly with the start attribute

<ol start="2">
  <li>item two</li>
  <li>item three</li>
</ol>

It is not possible with CSS only, and it seems like IE doesn't support the start attribute …