@SimonSapin 
this UA is from http://www.whatwg.org/specs/web-apps/current-work/multipage/rendering.html#decohints
```
ol[type=1], li[type=1] { list-style-type: decimal; }
ol[type=a], li[type=a] { list-style-type: lower-alpha; }
ol[type=A], li[type=A] { list-style-type: upper-alpha; }
...
```