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Re: [CSS21] display:run-in clarifications

From: Boris Zbarsky <bzbarsky@MIT.EDU>
Date: Tue, 01 Sep 2009 15:16:33 -0400
Message-ID: <4A9D7311.6040309@mit.edu>
To: www-style@w3.org
Another two issue with run-ins where behavior is inconsistent: 
inheritance and first-line/first-letter.  Consider this testcase:

<!DOCTYPE html>
<html>
<head>
   <style>
     #foo:first-line { color: blue; }
   </style>
</head>
<body>
   <div style="color: red">
     <span style="display:run-in;">
       bbb
     </span>
     <div id="foo" style="color: green">
       ccc
     </div>
   </div>
</body>
</html>

Without the first-line style, the behavior in Opera, Webkit, and IE8 is 
the same: the run-in runs in and is colored red.  This makes sense to 
me; I was going to implement the same.

With the first-line style, the behavior in Opera is that the run-in does 
not run in (and is colored red), while that in Webkit is that the run-in 
runs in and is colored blue.  In IE8, the run-in runs in and is colored 
red.  The IE8 behavior is the one that makes the most sense to me here.

For the same test but with first-letter instead of first-line, the Opera 
and IE8 behavior is to ignore the first-letter styling altogether while 
the Webkit behavior is to give me a blue 'b' followed by two red 'b's. 
The Webkit behavior is the one that makes sense to me here.

-Boris
Received on Tuesday, 1 September 2009 19:17:22 GMT

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