csswg-drafts/css3-gcpm/uc.html at 28e8919d7231c20dca978f02d892cbed6f919cb3 · xfq/csswg-drafts · GitHub

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
743
744
745
746
747
748
749
750
751
752
753
754
755
756
757
758
759
760
761
762
763
764
765
766
767
768
769
770
771
772
773
774
775
776
777
778
779
780
781
782
783
<!doctype html>
<html>
<style>
body { margin: 1em; font: small "Trebuchet MS", sans-serif }
table { border-collapse: collapse }
td, th { border: thin solid black; padding: 0.2em; vertical-align: top }
img { border: thin solid black }
</style>

<h1>Advanced Multicol Use Cases</h1>

<!--

<p><img src="img/folkevett.jpg"/>

<p>How can the article above be represented? The essential components are:

<ul>
<li>a grid-based layout with 8 columns
<li>a heading that spans all 8 colums
<li>an image that span the right-most 4 colums, all the way to the page edge
<li>in introdutcion that spans the left-most 4 column
</ul>

<p>We will disregard these components:

<ul>
<li>header and footers
<li>the fact that the article stretches across two pages
</ul>

-->

<table class=border><tr><th>Challege<th><a href="http://www.w3.org/Style/Group/css3-src/css3-grid/overview.src.html">Grid positioning</a><th><a href="http://www.w3.org/TR/2007/WD-css3-gcpm-20070504/">GCPM alt1</a><th>GCPM alt2</th><th>GCPM alt5</th>

<tr><td>#1 Float an image to the right in its containing block.
<pre>                  </pre>

<td><pre>img { float: right }</pre>
<td><pre>img { float: right }</pre>
<td><pre>img { float: right }</pre>
<td><pre>img { float: right }</pre>


<tr><td>#2 Float an image to the bottom of its containing block, <span class=change>allowing other content on its side.</span>

<td>
<pre>img {
  position:absolute;
  bottom:0;
  float-wrap:square; }
</pre>
<td>
<pre>img {
  float: bottom }
</pre>
</td>
<td>
not possible
</td>
<td>
Syntactically, this is possible:

<pre>
img {
  float: bottom
}
</pre>

<p>However, the specification doesn't require UAs to implement
vertical floating within the containing block.

</td>


<tr><td>#3 In paged media, float the image to the bottom of the page, without there being content on the side.

<td><pre>
img {
  position:page;
  bottom:0;
  width:100%;
  float-wrap:square; }
</pre>
<td><pre>
img {
  float: page bottom
  width: 100% }
</pre>
<td><pre>
img {
  float: bottom
}
</pre>

<td><pre>
img {
  float: page bottom;
  width:
}
</pre>


<tr><td>#4 In paged media, float the image to the bottom right of the page with other content on its left side.

<td><pre>
img {
  position: page;
  bottom:0;
  right:0;
  float-wrap:square; }
</pre>

<td><pre>
img {
  float: page bottom right }
</pre>

<td>not possible

<td><pre>
img {
  float: page bottom right;
}
</pre>


<tr><td>#5 In paged media, float the table to the top of the next page.

<td><pre>
table {
  float: top next page }
</pre>

<td>
<pre>
table {
  float: next page }
</pre>

<p class=comment>(top of page is default)


<td>
<pre>
table {
  float: top-next }
</pre>

<td>
<pre>
table {
  float: next page top  }
</pre>


<tr><td>#6 In paged media, float the image to the inside of its containing block.


<td><pre>object {
  position:absolute;
  inside:0;
  float-wrap:square; }</pre>

<td><pre>object { float: inside }</pre>

<td><pre>object { float: inside }</pre>

<td><pre>object { float: inside }</pre>


<tr><td>#7 In paged media, float the image to the top of the page, on the outside.


<td>
<pre>
object {
  position: page;
  top:0;
  outside:0;
  float-wrap:square;  }
</pre>

<td>
<pre>
object {
  float: page top outside }
</pre>

<td>
not possible

<td>
<pre>
object {
  float: page top outside;
}
</pre>


<tr><td>#8 In paged media, float the note to the next page if there isn't room on the current page.

<td>
<pre>
div.note {
  float: next page unless-room }
</pre>

<td><pre>
div.note {
  float: next page unless-room }
</pre>

<td><pre>
div.note {
  float: top-unless-room }
</pre>

<td><pre>
div.note {
  float: here, next page;
}
</pre>


<tr><td>#8b In paged media, float the note to the next column if there isn't room in the current column, while continuing to fill the current column

<td>unknown

<td><pre>
div.note {
  float: next column unless-room }
</pre>


<td><pre>
div.note {
  float: column-top-next-unless-room
}
</pre>

<tr>

<td><pre>
div.note {
  float: none, next column;
}
</pre>


<tr><td>#9 In paged media, hide the image if there isn't room enough on the page.

<td><pre>
img {
  float: hide unless-room }
</pre>

<td><pre>
img {
  float: hide unless-room }
</pre>

<td>not possible

<td>
<pre>
img {
  float: none, hide;
}
</pre>


<tr><td>#10 In a multicolumn layout, float an image to the left within the column, with other content flowing on the right.


<td><pre>img { float: left }</pre>
<td><pre>img { float: left }</pre>
<td><pre>img { float: left}</pre>
<td><pre>img { float: left}</pre>


<tr><td>#11 In a multicolumn layout, float the note to the bottom of the current column with no other content on its sides.

<td><pre>div.note {
  position:column;
  bottom:0;
  left:0;
  width:1gr;
  float-wrap:square; }</pre>
<td><pre>div.note { float: bottom column }</pre>

<td><pre>div.note { float: column-bottom }</pre>

<td><pre>div.note { float-vertical: bottom }</pre>


<tr><td>#12 In a multicolumn layout, float the image to the top right of the right-most column with text flowing on its left side:

<td>
<pre>
img {
  position:absolute;
  top:0;
  right:0;
  float-wrap:square; }
</pre>
<td>
<pre>
img {
  float: top right column }
</pre>

<td>not possible


<tr><td>#13 In a multicolumn layout, float an image that naturally occurs in the left-most column to the top left of the right-most column with text flowing on its right side:


<td>
<pre>
img {
  position:absolute;
  top:0;
  right:1gr;
  float-offset:100%;
  float-wrap:square; }
</pre>

<td><p class=comment>Not possible. If deemed necessary, this construct (where the overloading of 'left and 'right' has been replaced with 'right-'):

<pre>img {
  float: top left right-column }
</pre>

<td>not possible

<tr><td>#14 In a multicolumn layout, float the image to the top of the right-most column, setting the width of the image to be the width of the column box:


<td>
<pre>img {
  position:absolute;
  top:0;
  right:0;
  width:1gr;
  float-wrap:square; }
</pre>

<td>
<pre>
img {
  float: top right column;
  width: 1gr }
</pre>

<td>not possible

<tr><td>#15 In a multicolumn layout, float the image to the upper right corner of the multicolumn element, spanning two columns, setting the width of the image to be the width of both column boxes and the gap between them.


<td>
<pre>
img {
  position:absolute;
  right:0;
  top:0;
  width:3gr;
  float-wrap:square; }
</pre>

<td>
<pre>
img {
  float: top right column;
  width: 3gr }
</pre>

<td>not possible


<tr><td>#16 In a multicolumn layout, float the note to the bottom of the multi-column element, spanning all columns.

<td>
<pre>
div.note {
  position:absolute;
  bottom:0;
  width:100%;
  float-wrap:square; }
</pre>

<td>
<pre>
div.note {
  float: bottom;
  column-span: all }
</pre>

<td>not possible


<tr><td>#17 In a multicolumn layout in paged media, float the note to the bottom of the page, spanning all columns.

<td>
<pre>
div.note {
  position:page;
  bottom:0;
  width:100%;
  float-wrap:square; }
</pre>

<td>
<pre>
div.note {
  float: page bottom;
  column-span: all }
</pre>

<td>
<pre>
div.note {
  float: bottom;
}
</pre>

<tr><td>#18 In a multi-column layout, float the note to the bottom of the left-most column:

<td>
<pre>
div.note {
  position:absolute;
  bottom:0;
  left:0;
  width:1gr;
  float-wrap:square; }
</pre>

<td>
<pre>
div.note {
  float: bottom left column }
</pre>

<td>not possible

<tr><td>#19 In a multicolumn layout, put an image at the top of the next-to-rightmost column, setting the image width equal to the width of the column.

<td><pre>
div.note {
  position:absolute;
  top:0;
  right:2gr;
  width:1gr;
  float-wrap:square; }</pre>

<td>
<pre>
img {
  float: top right column;
  float-offset: 2gr 0;
  width: 1gr }
</pre>
</td>

<td>not possible

<tr><td>#20 In a three-column layout, put articles after each other in unbalanced columns.

<td>
<pre>
newspaper {
  columns: 3;
  column-fill: auto }
</pre>

<td>
<pre>
newspaper {
  columns: 3;
  column-fill: auto }
</pre>

<td>
<pre>
newspaper {
  columns: 3;
  column-fill: auto }
</pre>


<tr><td>#21 In a three-column layout, put articles after each other in balanced columns.

<td>
<pre>
newspaper {
  columns: 3;
  column-fill: balance }
</pre>
<td>
<pre>
newspaper {
  columns: 3;
  column-fill: balance }
</pre>

<td>
<pre>
newspaper {
  columns: 3;
  column-fill: balance }
</pre>


<tr><td>#22 In a three-column layout, make articles use exactly two balanced columns on the ending page (as The Economist does on occation)

<td><p class=comment>(not possible)

<p class=comment>can be done by reserving the last column with a float (empty or an ad)...

<td><p class=comment>(not possible)

<td>not possible


<tr><td>#23 In a three-column layout, make articles use exactly two balanced columns on the starting page.

<td><p class=comment>...another option is using named flows (with a container spanning 3 grid units)
<td><p class=comment>(not possible)

<td>not possible


<tr><td>#24 In a multicolumn layout, float an image to the upper right corner of the multicolumn element, spanning two columns, setting the width of the image to be the width of both column boxes and the gap between them. Further, the image has a caption that should be displayed below the image in the left column only.

<td><pre>img.large {
  position:absolute;
  right:0;
  top:0;
  width:3gr;
  float-wrap:square; }
div.caption {
  position:absolute;
  top:0;
  right:2gr;
  width:1gr;
  float-wrap:square; }
</pre>

<td>
<pre>img.large {
  float: top right column;
  width: 3gr }
div.caption {
  float: top right column;
  float-offset: 2gr
  width: 1gr }
</pre>
</td>

<td>not possible

<tr><td>#25 In a multicolumn layout, float an image to the upper right corner of the multicolumn element, spanning two columns, setting the width of the image to be the width of both column boxes and the gap between them. Further, the image has a caption that should be displayed to the right of the image (i.e., outside of the content box of the multicol element). The top of the caption should be aligned with the top of the image.

<td>
<pre>
img {
  position:absolute;
  top:0;
  right:0;
  width:3gr; }
.caption {
  position:absolute;
  top:0;
  right:0;
  float-offset: 100%; }
</pre>
<td>
<pre>
img {
  float: top right column;
  width: 3gr;
}
.caption {
  float: top right column;
  float-offset: -2gr
}
</pre>

<td>not possible

<tr><td>#26 As #25, except that the bottom of the caption is aligned with the middle of the image.

This markup is presumed:
<pre>
&lt;div class=multicol>
 ...
  &lt;div class=figure>
    &lt;img ...>
    &lt;p class=caption>
  &lt;/div>
  ...
&lt;/div>
</pre>


<td>
<pre>
.figure {
  position:absolute;
  top:0;
  right:0;
  width:3gr; }
.figure img {
  width:100%; }
.figure .caption {
  position:absolute;
  top:0.5gr;
  right:0;
  float-offset: 100%; }
</pre>

<td>
<pre>
.figure {
  float: top right column;
  width: 5gr;
  float-offset: -2gr
}

.figure img {
  display: table-cell;
  width: 3gr;
}

.figure .caption {
  display: table-cell;
  vertical-align: middle;
}
</pre>

<td>not possible

<tr><td>#27 As #25, except that the bottom of the caption is aligned with the bottom of the image.

<td><pre>
.figure {
  position:absolute;
  top:0;
  right:0;
  width:3gr;
  float-wrap:square;}
.figure img {
  width:100%; }
.figure .caption {
  position:absolute;
  bottom:0;
  right:0;
  float-offset: 100%; }
</pre>
<td>
<p class=comment>(As in the previous example, except that 'vertical-align' is set to 'bottom')


<td>not possible

<tr><td>#28 In a multi-column layout, float an element (containing, say, a quote) to the second column, placing it 10em from the top of the column. The element should fill the width of the column.

<td>
<pre>
quote {
  position:absolute;
  top:10em;
  left:2gr;
  width:1gr;
  float-wrap:square; }
</pre>
<td>
<pre>
quote {
  float: top left column;
  float-offset: 2gr 10em;
  width: 1gr; }
</pre>
</td>

<td>not possible


<tr><td>#29 as #28, except that the quote should be centered vertically in the column.

<td><pre>
quote {
  position:absolute;
  top:0.5gr;
  left:2gr;
  width:1gr;
  float-offset:0 50%;
  float-wrap:square; }
</pre>
<td>
<pre>
quote {
  float: top left column;
  float-offset: 2gr 50%;
  width: 1gr }
</pre>


<td>not possible

<tr><td>#30 In a multi-column layout, float an element (containing, say, a quote) between the first and second column so that the element intrudes into the two neighboring columns. Horizontally, the element should be centered wrt the column gap which is 1em. Vertically, the quote should be in the middle.

<td><pre>blockquote {
  position:absolute;
  top:0.5gr;
  left:1.5gr;
  float-offset:50% 50%;
  float-wrap:square; }</pre>
<td>
<pre>
blockquote {
  float: top left column;
  float-offset: 1.5gr 50% }
</pre>
</td>

<td>not possible


<tr><td>#31 In a four-column layout, the outside column should not have any normal content. Instead, images present in the content should be floated to this column, stacked underneath each other in the order they appear. This use case can also be thought of as a three-column layout with an outside margin equal to the width of one column, into which the images are floated.

<td>
<pre>
html { grid-columns: * (1em *)[3]; }
body {
  width: 5gr;
  columns: 3; }
img {
  position:absolute;
  top:0;
  right:0;
  width:1gr;
  float-wrap:square; }
</pre>
<td>

<pre>
@page :left { margin-left: 10em }
@page :right { margin-right: 10em }
body { columns: 3 }
img { float: top outside page }
</pre>

<td>
unsure


<!--<pre>@page :left {
  margin-left: 10em;
  @sidenote {
    position: fixed;
    left: -8em;
    width: 6em }
}
@page :right {
  margin-right: 10em;
  @sidenote {
    position: fixed;
    right: -8em;
    width: 6em }
}
body {
  width: 30em;
  columns: 3 }
img { float: sidenote }
</pre>-->
</table>