[css3-values] Value ranges and other limits (was: [CSSWG] Minutes and Resolutions Telecon 2012-04-18)

[fantasai:] 

>    - RESOLVED: 2^24-1 minimum for numeric types, 30-component minimum for
>                repetitions, 30-component minimum for calc(), adjust lower
> if
>                necessary later
IE9 does max out around 20; unless there are objections to this minimum I
request that we set this as the minimum.