From what I can tell from a quick search on a couple of CSS sites is that:
Quote:
-webkit-hyphenate-after: 3;
-webkit-hyphenate-before: 3;
-webkit-hyphenate-lines: 2;
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are considered as obsolete and should be replaced by:
Quote:
-webkit-hyphenate-limit-after: 3;
-webkit-hyphenate-limit-before: 3;
-webkit-hyphenate-limit-lines: 2;
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Sadly, the W3C stylesheet validator calls all them unknown vendor extensions.