22"http://www.w3.org/TR/html4/strict.dtd">
33
44< html lang =en >
5- < head > < meta content ="text/html " http-equiv =Content-Type >
6-
5+ < head >
76 < title > CSS Multi-column Layout Module</ title >
87 < link href ="../default.css " rel =stylesheet type ="text/css ">
98 < link href ="http://www.w3.org/StyleSheets/TR/W3C-ED.css " rel =stylesheet
2928
3029 < h1 > CSS Multi-column Layout Module</ h1 >
3130
32- < h2 class ="no-num no-toc " id =w3c-working > Editor's Draft 07 April 2011</ h2 >
31+ < h2 class ="no-num no-toc " id =w3c-working > Editor's Draft 15 May 2011</ h2 >
3332
3433 < dl >
3534 < dt > This version:
3635
3736 < dd >
38- <!--<a href="http://www.w3.org/TR/2011/CR-css3-multicol-20110407 ">http://www.w3.org/TR/2011/ED-css3-multicol-20110407 </a>-->
37+ <!--<a href="http://www.w3.org/TR/2011/CR-css3-multicol-20110515 ">http://www.w3.org/TR/2011/ED-css3-multicol-20110515/ </a>-->
3938 < a
4039 href ="http://dev.w3.org/csswg/css3-multicol/ "> http://dev.w3.org/csswg/css3-multicol/</ a >
4140
@@ -48,7 +47,7 @@ <h2 class="no-num no-toc" id=w3c-working>Editor's Draft 07 April 2011</h2>
4847 < dt > Previous version:
4948
5049 < dd > < a
51- href ="http://www.w3.org/TR/2009/WD -css3-multicol-20090630 / "> http://www.w3.org/TR/2009/WD -css3-multicol-20090630 /</ a >
50+ href ="http://www.w3.org/TR/2009/CR -css3-multicol-20091217 / "> http://www.w3.org/TR/2009/CR -css3-multicol-20091217 /</ a >
5251
5352
5453 < dt > Editors:
@@ -124,11 +123,17 @@ <h2 class="no-num no-toc" id=status-of-this-document>Status of this
124123 screen, multi-column layouts have been considered experimental, and
125124 implementation and use experience was deemed necessary in order to
126125 proceed. Several implementations have occurred over the past years, and
127- this draft incorporates useful feedback from implementors as well as
128- authors and users.
126+ this specification incorporates useful feedback from implementors as well
127+ as authors and users.
128+
129+ < p > The specification was updated in April 2011 to correct a contradiction
130+ between the text and the pseudo-algorithm in section 3.4. The
131+ pseudo-algorithm was corrected and also made easier to read. The wording
132+ of a few other sections was improved in places, without changes to the
133+ functionality.
129134
130- < p > This document will remain Candidate Recommendation at least until 17
131- June 2010 . See the < a href ="#cr-exit-criteria "> CR exit criteria.</ a >
135+ < p > This document will remain Candidate Recommendation at least until 12 May
136+ 2011 . See the < a href ="#cr-exit-criteria "> CR exit criteria.</ a >
132137
133138 < h2 class ="no-num no-toc " id =table-of-contents > < a name =contents > Table of
134139 contents</ a > </ h2 >
@@ -1019,8 +1024,9 @@ <h3 id=pseudo-algorithm><span class=secno>3.4. </span>Pseudo-algorithm</h3>
10191024
10201025(19) if (column-width != auto) and (column-count != auto) then
10211026(20) N := min(column-count, floor((available-width + column-gap) / (column-width + column-gap)))
1022- (21) W := ((available-width + column-gap) / N) - column-gap;
1023- (22) exit
1027+ (21) N := max(1, N);
1028+ (22) W := ((available-width + column-gap) / N) - column-gap;
1029+ (23) exit
10241030</ pre >
10251031
10261032 < p > In paged media, user agents may perform this calculation on a per-page
@@ -2230,10 +2236,10 @@ <h3 class=no-num id=normative-references>Normative references</h3>
22302236 < dt id =CSS21 > [CSS21]
22312237
22322238 < dd > Bert Bos; et al. < a
2233- href ="http://www.w3.org/TR/2010/WD -CSS2-20101207 "> < cite > Cascading Style
2234- Sheets Level 2 Revision 1 (CSS 2.1) Specification.</ cite > </ a > 7 December
2235- 2010 . W3C Working Draft . (Work in progress.) URL: < a
2236- href ="http://www.w3.org/TR/2010/WD -CSS2-20101207 "> http://www.w3.org/TR/2010/WD -CSS2-20101207 </ a >
2239+ href ="http://www.w3.org/TR/2009/CR -CSS2-20090423 "> < cite > Cascading Style
2240+ Sheets Level 2 Revision 1 (CSS  2.1) Specification.</ cite > </ a > 23
2241+ April 2009 . W3C Candidate Recommendation . (Work in progress.) URL: < a
2242+ href ="http://www.w3.org/TR/2009/CR -CSS2-20090423 "> http://www.w3.org/TR/2009/CR -CSS2-20090423 </ a >
22372243 </ dd >
22382244 <!---->
22392245
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