CSS Prefix information added
A number of CSS3 properties require a prefix (like -moz- or -webkit- ) to work in certain browser versions, either due to experimentation or the spec's instability. As the specification matures, this prefix is usually dropped.
Information on when a prefix is required is now available on When Can I Use, in the form of each prefix appearing in the upper-right corner of the table cell. If no prefix appears, the feature should work fine without it.
Please let me know if any errors were made when I added this information. Thanks!