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Bug 15988 - box-shadow with 4 lengths yields "Parse Error [empty string]"
Summary: box-shadow with 4 lengths yields "Parse Error [empty string]"
Status: RESOLVED FIXED
Alias: None
Product: CSSValidator
Classification: Unclassified
Component: CSS 3 (show other bugs)
Version: CSS Validator
Hardware: All Windows XP
: P2 normal
Target Milestone: ---
Assignee: This bug has no owner yet - up for the taking
QA Contact: qa-dev tracking
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Reported: 2012-02-14 21:09 UTC by Jean Rajotte
Modified: 2012-09-03 21:12 UTC (History)
0 users

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Description Jean Rajotte 2012-02-14 21:09:59 UTC 
The following valid snippet causes the validator to complain of a Parse Error:

.frozenY { box-shadow: 0px 2px 4px -2px #BBB; }

Replace "-2px" with "2px" and there's still an error -- it's not the "-".
Remove the "-2px" and there's no error.

Therefore it's 4 lengths that are seen as illegal.

The browser (Chrome, FF) renders the shadow as designed, and according to http://www.css3.info/preview/box-shadow/  this is valid CSS:

box-shadow: none | <shadow> [ , <shadow> ]*
<shadow> = inset? && [ <length>{2,4} && <color>? ]
Comment 1 Yves Lafon 2012-09-03 21:12:59 UTC 
fixed when box-shadow was re-implemented.