Record of Known Bugs

This page records known problems in the CSS 2.1 Conformance Test Suite. For problems with the harness, see Test Suite Build System.

Please do not add new issues to this page, to record a bug, use the Test Suite Management System. Search for the test case, enter your comment and set the status to “Needs Work”.

The issues listed on this page will be migrated to the new management system shortly.

1. [MSFT] [RC6] font-family-rule-002 Reasons why: http://lists.w3.org/Archives/Public/public-css-testsuite/2011Feb/0116.html It is not ok to have one letter “X”; there should be 2 small filled black squares vertically lined up. line-height should be specified in the testcase, preferably set to a value of 1.25 in the testcase.
2. [MSFT] [RC6] font-family-rule-003 Reasons why: http://lists.w3.org/Archives/Public/public-css-testsuite/2011Feb/0117.html font-family: Ahem!; is not a valid declaration: CSS validation report. Therefore, an “X” must be rendered; an “X” being rendered is not optional or a 'may'. Pass conditions should be updated accordingly. Additionally, the testcase misses the invalid flag.
3. [MSFT] [RC6] height-applies-to-001 Reasons why: "CSS 2.1 does not define the meaning of 'height' on row groups."
4. [MSFT] [RC6] height-applies-to-002 Reasons why: "CSS 2.1 does not define the meaning of 'height' on row groups."
5. [MSFT] [RC6] height-applies-to-003 Reasons why: "CSS 2.1 does not define the meaning of 'height' on row groups."
6. [MSFT] [RC6] max-height-applies-to-001 Reasons why: "In CSS 2.1, the effect of 'min-height' and 'max-height' on tables, inline tables, table cells, table rows, and row groups is undefined."
7. [MSFT] [RC6] max-height-applies-to-002 Reasons why: "In CSS 2.1, the effect of 'min-height' and 'max-height' on tables, inline tables, table cells, table rows, and row groups is undefined."
8. [MSFT] [RC6] max-height-applies-to-003 Reasons why: "In CSS 2.1, the effect of 'min-height' and 'max-height' on tables, inline tables, table cells, table rows, and row groups is undefined."
9. [MSFT] [RC6] max-height-applies-to-004 Reasons why: "In CSS 2.1, the effect of 'min-height' and 'max-height' on tables, inline tables, table cells, table rows, and row groups is undefined."
10. [MSFT] [RC6] max-height-applies-to-007 Reasons why: "In CSS 2.1, the effect of 'min-height' and 'max-height' on tables, inline tables, table cells, table rows, and row groups is undefined."
11. [MSFT] [RC6] max-height-applies-to-013 Reasons why: "In CSS 2.1, the effect of 'min-height' and 'max-height' on tables, inline tables, table cells, table rows, and row groups is undefined."
12. [MSFT] [RC6] max-height-applies-to-014 Reasons why: "In CSS 2.1, the effect of 'min-height' and 'max-height' on tables, inline tables, table cells, table rows, and row groups is undefined."
13. [MSFT] [RC6] min-height-applies-to-001 Reasons why: "In CSS 2.1, the effect of 'min-height' and 'max-height' on tables, inline tables, table cells, table rows, and row groups is undefined."
14. [MSFT] [RC6] min-height-applies-to-002 Reasons why: "In CSS 2.1, the effect of 'min-height' and 'max-height' on tables, inline tables, table cells, table rows, and row groups is undefined."
15. [MSFT] [RC6] min-height-applies-to-003 Reasons why: "In CSS 2.1, the effect of 'min-height' and 'max-height' on tables, inline tables, table cells, table rows, and row groups is undefined."
16. [MSFT] [RC6] min-height-applies-to-004 Reasons why: "In CSS 2.1, the effect of 'min-height' and 'max-height' on tables, inline tables, table cells, table rows, and row groups is undefined."
17. [MSFT] [RC6] min-height-applies-to-007 Reasons why: "In CSS 2.1, the effect of 'min-height' and 'max-height' on tables, inline tables, table cells, table rows, and row groups is undefined."
18. [MSFT] [RC6] min-height-applies-to-013 Reasons why: "In CSS 2.1, the effect of 'min-height' and 'max-height' on tables, inline tables, table cells, table rows, and row groups is undefined."
19. [MSFT] [RC6] min-height-applies-to-014 Reasons why: "In CSS 2.1, the effect of 'min-height' and 'max-height' on tables, inline tables, table cells, table rows, and row groups is undefined."
20. [MSFT] [RC6] max-width-applies-to-005 Reasons why: "In CSS 2.1, the effect of 'min-width' and 'max-width' on tables, inline tables, table cells, table columns, and column groups is undefined."
21. [MSFT] [RC6] max-width-applies-to-006 Reasons why: "In CSS 2.1, the effect of 'min-width' and 'max-width' on tables, inline tables, table cells, table columns, and column groups is undefined."
22. [MSFT] [RC6] max-width-applies-to-007 Reasons why: "In CSS 2.1, the effect of 'min-width' and 'max-width' on tables, inline tables, table cells, table columns, and column groups is undefined."
23. [MSFT] [RC6] max-width-applies-to-013 Reasons why: "In CSS 2.1, the effect of 'min-width' and 'max-width' on tables, inline tables, table cells, table columns, and column groups is undefined."
24. [MSFT] [RC6] max-width-applies-to-014 Reasons why: "In CSS 2.1, the effect of 'min-width' and 'max-width' on tables, inline tables, table cells, table columns, and column groups is undefined."
25. [MSFT] [RC6] min-width-applies-to-005 Reasons why: "In CSS 2.1, the effect of 'min-width' and 'max-width' on tables, inline tables, table cells, table columns, and column groups is undefined."
26. [MSFT] [RC6] min-width-applies-to-006 Reasons why: "In CSS 2.1, the effect of 'min-width' and 'max-width' on tables, inline tables, table cells, table columns, and column groups is undefined."
27. [MSFT] [RC6] min-width-applies-to-007 Reasons why: "In CSS 2.1, the effect of 'min-width' and 'max-width' on tables, inline tables, table cells, table columns, and column groups is undefined."
28. [MSFT] [RC6] min-width-applies-to-013 Reasons why: "In CSS 2.1, the effect of 'min-width' and 'max-width' on tables, inline tables, table cells, table columns, and column groups is undefined."
29. [MSFT] [RC6] min-width-applies-to-014 Reasons why: "In CSS 2.1, the effect of 'min-width' and 'max-width' on tables, inline tables, table cells, table columns, and column groups is undefined."
30. [MSFT] [RC6] table-footer-group-003 Reasons why: http://lists.w3.org/Archives/Public/public-css-testsuite/2011Jun/0006.html
31. [MSFT] [RC6] table-header-group-003 Reasons why: http://lists.w3.org/Archives/Public/public-css-testsuite/2011Jun/0006.html
32. [Hixie] [RC6] z-index-abspos-009 Reasons why: http://lists.w3.org/Archives/Public/public-css-testsuite/2010Dec/0198.html
33. [Hixie] [RC6] text-decoration-089 Reasons why: http://lists.w3.org/Archives/Public/public-css-testsuite/2011Nov/0014.html
34. [MSFT] [RC6] line-box-height-001 Reasons why: http://lists.w3.org/Archives/Public/public-css-testsuite/2011Apr/0029.html
35. [MSFT] [RC6] text-decoration-applies-to-005 Reasons why: http://lists.w3.org/Archives/Public/public-css-testsuite/2011Nov/0011.html
36. [MSFT] [RC6] border-conflict-element-001 Reasons why: http://lists.w3.org/Archives/Public/public-css-testsuite/2011Oct/0007.html
37. [MSFT] [RC6] border-conflict-element-002 Reasons why: http://lists.w3.org/Archives/Public/public-css-testsuite/2011Oct/0007.html
38. [MSFT] [RC6] background-position-applies-to-004 This background-position-applies-to-004 testcase is supposed to test background-position applied to a table-row. Now, if the tested table-row has only 1 single cell, then how can such testcase be different from testing background-position being applied to a table-cell? More reasons: http://lists.w3.org/Archives/Public/public-css-testsuite/2011Sep/0040.html

• font-matching-rule-008 - fixed for RC4
• Various [min-|max-|]height-applies-to- tests listed here : height, max-height, min-height supposed to be undefined for table row groups; max-height and min-height should not apply to table-row elements and table-cell elements - Some fixed in RC4 remaining fixes in RC5
• content-counter-010 - Fixed for RC4
• content-counters-010 - Fixed for RC4
• [MSFT] [RC6] font-005 , [MSFT] [RC6] font-019 and [MSFT] [RC6] font-021: all 3 testcases assume that synthetic small-caps “x” must be taller/larger than normal lowercase “x” when the spec makes no statement of this sort. Also, using x/X is not best; better is e/E because glyphs have different shapes. More info
• [nightly-unstable] c21-pseud-link-002 The tested link has <a href=“c21-pseud-link-002.xht”>
• [MSFT] [RC6] first-letter-selector-015 Konqueror 4.6.4 fails this test only because a missing image icon is shown and the text “Missing” is shown (due to default image placeholder dimensions insufficient, too narrow, for the alt text) but not “Missing image”. Just because of that, I think the testcase should be reviewed.

• [Hixie] [RC6] c414-flt-ln-000 , [Hixie] [RC6] c414-flt-ln-001 and [Hixie] [RC6] c414-flt-ln-003 should have their borders removed. Reason why: http://lists.w3.org/Archives/Public/public-css-testsuite/2011Jan/0020.html
• background-intrinsic-004 - Fixed for RC4
• background-intrinsic-005 - Fixed for RC4
• [Hixie] [RC6] c71-fwd-parsing-004 “This line should be bright green” when it is its background color
• [Hixie] [nightly-unstable] blocks-027 The testcase 1- relies on CSS3 box-sizing 2- uses vendor prefix -moz 3- code could be more compact. More info: http://lists.w3.org/Archives/Public/public-css-testsuite/2011May/0043.html
• [Hixie] [nightly-unstable] blocks-028 The testcase 1- relies on CSS3 box-sizing 2- uses vendor prefix -moz 3- code could be more compact. More info: http://lists.w3.org/Archives/Public/public-css-testsuite/2011May/0043.html
• [MSFT] [RC6] outline-width-061 The title says “outline the box with a 5in solid outline” but a 2in solid outline is tested. More info: http://lists.w3.org/Archives/Public/public-css-testsuite/2011May/0048.html
• [MSFT] [RC6] outline-width-062 The title says “outline the box with a 5in solid outline” but a 2in solid outline is tested. More info: http://lists.w3.org/Archives/Public/public-css-testsuite/2011May/0048.html
• [MSFT] [RC6] outline-width-083 The title says “outline the box with a 5ex solid outline” but a 5px solid outline is tested. More info: http://lists.w3.org/Archives/Public/public-css-testsuite/2011May/0048.html
• [MSFT] [RC6] overflow-ancestors-001 The meta assert says “Overflow clipping does not affect elements which are ancestors to the element being clipped.” but that is not what the test is testing. Proposed correction: “Overflow clipping does not affect elements which are descendants of the element being clipped.” More info: http://lists.w3.org/Archives/Public/public-css-testsuite/2011May/0049.html
• [MSFT] [RC6] block-formatting-contexts-010 Reasons why: http://lists.w3.org/Archives/Public/public-css-testsuite/2011Oct/0024.html
• [MSFT] [RC6] block-formatting-contexts-012
• [Hixie] [RC6] columns-001 Reasons why: http://lists.w3.org/Archives/Public/public-css-testsuite/2011Nov/0026.html
• [MSFT] [RC6] table-visual-layout-002 Reasons why: http://lists.w3.org/Archives/Public/public-css-testsuite/2011Jul/0000.html
• [MSFT] [RC6] table-anonymous-block-011 Reasons why: http://lists.w3.org/Archives/Public/public-css-testsuite/2011Nov/0029.html

1. [MSFT] [RC6] containing-block-017 Reasons why: http://lists.w3.org/Archives/Public/public-css-testsuite/2011Jan/0063.html What do do? title and text assert should be adjusted to pinpoint section 10.1, bullet 4, sub-bullet 1 and not sub-bullet 2 (since ancestor is an inline box, not a block).
2. [MSFT] [RC6] font-systemfont-rule-003 Reasons why: http://lists.w3.org/Archives/Public/public-css-testsuite/2011Mar/0038.html
3. [MSFT] http://lists.w3.org/Archives/Public/public-css-testsuite/2011Jun/0007.html: over 60 [RC6] [max|min]-[height|width] testcases can not fail.
4. [MSFT] http://lists.w3.org/Archives/Public/public-css-testsuite/2011Jun/0007.html: about 30 [RC6] [max|min]-[height|width] testcases have an one-single-pixel-between-pass-and-fail-condition which is not suitable for a test suite and human testers.

1. [Hixie] [RC6] c526-font-sz-002 Reasons why: http://lists.w3.org/Archives/Public/public-css-testsuite/2011Feb/0034.html
2. [Hixie] [RC6] c541-word-sp-000 Reasons why: http://lists.w3.org/Archives/Public/public-css-testsuite/2011Feb/0035.html
3. [Hixie] [RC6] c542-letter-sp-000 Reasons why: http://lists.w3.org/Archives/Public/public-css-testsuite/2011Feb/0036.html
4. [Hixie] [RC6] c43-center-000 and [RC6] c5525-fltwidth-002 Reasons why: http://lists.w3.org/Archives/Public/public-css-testsuite/2011Feb/0037.html
5. [Hixie] [RC6] c547-indent-000 Reasons why: http://lists.w3.org/Archives/Public/public-css-testsuite/2011Feb/0038.html
6. [Hixie] [RC6] c548-ln-ht-002 Reasons why: http://lists.w3.org/Archives/Public/public-css-testsuite/2011Feb/0039.html
7. [Hixie] [RC6] units-001 Reasons why: http://lists.w3.org/Archives/Public/public-css-testsuite/2011Jun/0005.html
8. [Hixie] [RC6] units-004 Reasons why: http://lists.w3.org/Archives/Public/public-css-testsuite/2011Jun/0005.html
9. [Hixie] [RC6] units-005 Reasons why: http://lists.w3.org/Archives/Public/public-css-testsuite/2011Jun/0005.html
10. [MSFT] [RC6] word-spacing-043 More info: http://lists.w3.org/Archives/Public/public-css-testsuite/2011Jul/0003.html
11. [MSFT] [RC6] word-spacing-044 More info: http://lists.w3.org/Archives/Public/public-css-testsuite/2011Jul/0003.html

Ugly, not self-documenting:

background-alpha-001
background-alpha-002
background-alpha-003
background-alpha-004
background-alpha-005

[MSFT] [RC6] content-158 What to do? set display: inline-block to containing block and then a padding of 1em should be added to make viewing easier, faster.

• background-attachment-004 (also has external references to image files)
• inlines-004-inlines-006: unclear what “aligned” means. Fixed for RC4
• text-transform-bicameral-009, text-transform-bicameral-010: should attempt to pick a font that has the glyphs - Uses the browser's default, which should be falling back to whatever it can find.
• [MSFT] [RC6] background-130 - still not fixed in RC6: “on top of” should be replaced with “above”; “stripe” seems preferable to “short box”
• outline-003 - fixed for RC4
• text-align-applies-to-001 - fixed for RC4
• list-style-position-017
• [Hixie] [RC6] floats-110 Reasons why: http://lists.w3.org/Archives/Public/public-css-testsuite/2011Jan/0029.html
• [Hixie] [RC6] inline-block-002 since “Try resizing the window so that inline-blocks wrap in one or two columns.” can never be accomplished. It should be saying instead/rather something like “Try resizing the window so that inline-blocks wrap internally into 2 lines of text.”
• [Hixie] [RC6] inline-block-004 since “Try resizing the window so that inline-blocks wrap in one or two columns.” can never be accomplished. It should be saying instead/rather something like “Try resizing the window so that inline-blocks wrap internally into 2 lines of text.”
• [Hixie] [RC6] inline-block-005 since “Try resizing the window so that inline-blocks wrap in one or two columns.” can never be accomplished. It should be saying instead/rather something like “Try resizing the window so that inline-blocks wrap internally into 2 lines of text.”
• [Hixie] [RC6] first-line-pseudo-017 says “This line should be green.” but it is its background color. Proposed correction: “This line should have a green background.”
• [Hixie] [RC6] first-line-pseudo-018 says “This line should be green.” but it is its text. Proposed correction: “This text should be green.”
• [Hixie] [RC6] hover-selector-002 says “When you hover over this text (…)” : the this word normally is self-pointing, self-referencing… but not in this test. Such formulation is confusing.

1. [Moz] [RC6] table-percent-width-001 My neighbour would ask “What's a 100px by 100px green square?”
2. [Hixie] [RC6] background-alpha-001 My neighbour would ask “What's a 'multi-bit alpha channel'?” Pass conditions are not so clear and text is too technical.
3. [Hixie] [RC6] background-alpha-002 My neighbour would ask “What's a 'multi-bit alpha channel'?” Pass conditions are not so clear and text is too technical.
4. [Hixie] [RC6] background-alpha-003 My neighbour would ask “What's a square div? How tall/big is/should be the 'size of two tiles'?” Pass conditions are not clear or easy for normal people and text is too technical.
5. [MSFT] [RC6] cursor-applies-to-005 My neighbour would ask “What's a default cursor? How does it look like?” I propose to add to the expected results: “The default cursor often looks like an arrow.”
6. [MSFT] [RC6] cursor-applies-to-006 My neighbour would ask “What's a default cursor? How does it look like?” I propose to add to the expected results: “The default cursor often looks like an arrow.”
7. [Hixie] [RC6] first-line-pseudo-011 The pass conditions text should be only: “The next three boxes should look identical.” The sentence “(If the second and third look different, then margin collapsing through empty elements is broken. Go to these tests for more details.)” should be removed.
8. [Hixie] [RC6] inline-replaced-width-014 The pass conditions text should be only: “There should be 2 identical filled green rectangles and no red.”
9. [Hixie] [RC6] inline-replaced-width-015 The pass conditions text should be only: “There should be 2 identical filled bright green rectangles and no red.”

1. [Hixie] c527-font-000 : “There should be a small gap between each line.” Reason: how small is “a small gap”? How can a normal tester (your mother, your bus driver, your neighbour) realistically establish that this gap here is small while that gap over there is not small? How exactly can this test fail?
2. [Hixie] c527-font-002 : “9px gap between lines” Reason: how can a normal tester (your mother, your bus driver, your neighbour) realistically establish that this gap here is 9px while that gap over there is not 9px? The testcase does not provide a ruler, some kind of green overlapping red mechanism, etc. Where is the start line and the end line?
3. [Hixie] c527-font-003 : “small and cursive, with double line spacing” Reason: it is not clear how such test can be evaluated as pass or fail, even by a machine.
4. [Hixie] c527-font-004
5. [Hixie] c527-font-005
6. [Hixie] c527-font-006
7. [Hixie] c527-font-007
8. [Hixie] c527-font-008
9. [Hixie] c527-font-009
10. [Hixie] c527-font-10 : Reasons: All these testcases rely on the tester being able to measure a distance of a few pixels between lines, or the font-size, without a comparing ruler, without a reliable working measurement system or some kind of overlapping color mechanism.

More explanations on why these c527-font-* testcases need to be reworked or redesigned to be easier for normal tester-persons to evaluate: http://lists.w3.org/Archives/Public/public-css-testsuite/2010Jan/0043.html , http://lists.w3.org/Archives/Public/public-css-testsuite/2010Aug/0000.html , http://lists.w3.org/Archives/Public/public-css-testsuite/2010Oct/0061.html

c5526c-display-000

1. [Hixie] [RC6] vertical-align-121 Removing <p class=“ahemprereq”> whole paragraph is likely going to remove the unneeded and unexpected horizontal scrollbar at the same time.
2. [Hixie] [RC6] white-space-collapsing-001 Removing <div class=“prereq”> whole paragraph is likely going to remove the unneeded and unexpected horizontal scrollbar at the same time.
3. [Hixie] [RC6] white-space-collapsing-002 Removing <div class=“prereq”> whole paragraph is likely going to remove the unneeded and unexpected horizontal scrollbar at the same time.

1. The following testcases: [Hixie] [RC6] margin-collapse-101 , [Hixie] [RC6] margin-collapse-107 , [Hixie] [RC6] margin-collapse-108 , [Hixie] [RC6] margin-collapse-109 , [Hixie] [RC6] margin-collapse-110 , [Hixie] [RC6] margin-collapse-111 , [Hixie] [RC6] margin-collapse-112 , [Hixie] [RC6] margin-collapse-113 , etc.. all have a sentence pointing to testcase [RC6] margin-collapse-106 but the link is broken.

1. [Moz] before-after-dynamic-attr-001 The html element can not have a class: class=“reftest-wait”; body element can not be empty.
2. [Moz] before-after-dynamic-restyle-001 The html element can not have a class: class=“reftest-wait”; body element can not be empty.
3. [Moz] block-in-inline-insert-010
4. [Moz] block-in-inline-insert-013
5. [Moz] before-after-table-parts-001 It has CSS validation issues too; explanations: http://lists.w3.org/Archives/Public/public-css-testsuite/2011Jan/0011.html
6. [Hixie] [RC6] fonts-009
7. [Hixie] [RC6] inlines-014 line8: <met> should be <meta>
8. [MSFT] [RC6] viewport-004 The frame element must not have a closing, end tag: its content model is empty. Validation report of viewport-004.htm
9. [Hixie] [RC6] tables-002

1. [Moz] [RC6] z-index-020 ; CSS Validation report
2. [MSFT] [RC6] font-systemfont-rule-003 ; CSS Validation report : font shorthand requires font-size and font-family. More info
3. [Hixie] [RC6] c43-rpl-bbx-002 ; see http://lists.w3.org/Archives/Public/public-css-testsuite/2011Feb/0033.html ; CSS Validation report
4. [Hixie] [RC6] c43-rpl-ibx-000 ; see http://lists.w3.org/Archives/Public/public-css-testsuite/2011Feb/0033.html ; CSS Validation report
5. [RC6] allowed-page-breaks-004 ; line 22 has font-size:
6. [Moz] [RC6] before-after-table-parts-001 ; CSS Validation report

1. [MSFT] [RC6] inline-formatting-context-016 Reasons why: http://lists.w3.org/Archives/Public/public-css-testsuite/2011Apr/0004.html
2. [MSFT] [RC6] inline-formatting-context-020 Reasons why: http://lists.w3.org/Archives/Public/public-css-testsuite/2011Apr/0005.html
3. [MSFT] position-relative-nested-001 Reasons why: http://lists.w3.org/Archives/Public/public-css-testsuite/2010Oct/0020.html

1. [RC6] page-break-inside-006

1. [Hixie] [RC6] vertical-align-121 The <p class=“ahemprereq”> should also be removed.
2. [Hixie] [RC6] line-breaking-bidi-001
3. [Hixie] [RC6] line-breaking-bidi-002
4. [Hixie] [RC6] line-breaking-bidi-003
5. [Hixie] [RC6] margin-collapse-130
6. [Hixie] [RC6] margin-collapse-137
7. [Hixie] [RC6] margin-collapse-138

1. [Hixie] [RC6] c526-font-sz-003 font-size: -0.5in; will be parsed and reported as an illegal value.
2. [Hixie] [RC6] c548-ln-ht-002 line-height: -1em; will be parsed and reported as an illegal value.
3. [MSFT] [RC6] font-size-rule-001
4. [MSFT] [RC6] font-family-rule-003
5. [MSFT] [RC6] font-family-rule-007
6. [Moz] [RC6] ident-020
7. [Moz] [RC6] import-000
8. [Moz] [RC6] import-001
9. [MSFT] [RC6] max-height-001: because “Negative values for 'min-height' and 'max-height' are illegal.”
10. [MSFT] [RC6] max-height-012
11. [MSFT] [RC6] max-height-023
12. [MSFT] [RC6] max-height-034
13. [MSFT] [RC6] max-height-045
14. [MSFT] [RC6] max-height-056
15. [MSFT] [RC6] max-height-067
16. [MSFT] [RC6] max-height-078
17. [RC6] max-width-001: because “Negative values for 'min-width' and 'max-width' are illegal.”
18. [MSFT] [RC6] max-width-012
19. [MSFT] [RC6] max-width-023
20. [MSFT] [RC6] max-width-034
21. [MSFT] [RC6] max-width-045
22. [MSFT] [RC6] max-width-056
23. [MSFT] [RC6] max-width-067
24. [MSFT] [RC6] max-width-078
25. [MSFT] [RC6] min-height-001: because “Negative values for 'min-height' and 'max-height' are illegal.”
26. [MSFT] [RC6] min-height-012
27. [MSFT] [RC6] min-height-023
28. [MSFT] [RC6] min-height-034
29. [MSFT] [RC6] min-height-045
30. [MSFT] [RC6] min-height-056
31. [MSFT] [RC6] min-height-067
32. [MSFT] [RC6] min-height-078
33. [MSFT] [RC6] min-width-001: because “Negative values for 'min-width' and 'max-width' are illegal.”
34. [MSFT] [RC6] min-width-012
35. [MSFT] [RC6] min-width-023
36. [MSFT] [RC6] min-width-034
37. [MSFT] [RC6] min-width-045
38. [MSFT] [RC6] min-width-056
39. [MSFT] [RC6] min-width-067
40. [MSFT] [RC6] min-width-078
41. [MSFT] [RC6] outline-style-hidden-001 since "'hidden' is not a legal outline style"
42. [MSFT] [RC6] padding-bottom-001
43. [MSFT] [RC6] padding-bottom-045
44. [MSFT] [RC6] padding-bottom-056
45. [MSFT] [RC6] padding-bottom-089
46. [MSFT] [RC6] padding-left-001
47. [MSFT] [RC6] padding-left-012
48. [MSFT] [RC6] padding-left-023
49. [MSFT] [RC6] padding-left-034
50. [MSFT] [RC6] padding-left-045
51. [MSFT] [RC6] padding-left-056
52. [MSFT] [RC6] padding-left-089
53. [MSFT] [RC6] padding-right-001
54. [MSFT] [RC6] padding-right-012
55. [MSFT] [RC6] padding-right-023
56. [MSFT] [RC6] padding-right-034
57. [MSFT] [RC6] padding-right-045
58. [MSFT] [RC6] padding-right-056
59. [MSFT] [RC6] padding-right-089
60. [MSFT] [RC6] padding-top-001
61. [MSFT] [RC6] padding-top-012
62. [MSFT] [RC6] padding-top-023
63. [MSFT] [RC6] padding-top-034
64. [MSFT] [RC6] padding-top-045
65. [MSFT] [RC6] padding-top-056
66. [MSFT] [RC6] padding-top-089
67. [MSFT] [RC6] width-001
68. [MSFT] [RC6] width-012
69. [MSFT] [RC6] width-023
70. [MSFT] [RC6] width-034
71. [MSFT] [RC6] width-045
72. [MSFT] [RC6] width-056
73. [MSFT] [RC6] width-089

1. [Hixie] [RC6] floats-110 since resizing the viewport is part of the test pass/fail condition

1. page-break-after-010 relies on CSS3 at-keywords for paged media - CSS3 bits not part of tests, so ok
2. page-break-before-003 relies on CSS3 at-keywords for paged media - CSS3 bits not part of tests, so ok
3. page-break-before-005 relies on CSS3 at-keywords for paged media - CSS3 bits not part of tests, so ok

CSS 2.1 spec says: “User agents may vary in how they handle invalid URIs or URIs that designate unavailable or inapplicable resources.”

coming from CSS 2.1, section 4.3.4 URLs and URIs

and

“The value is a URI that designates an external resource (such as an image). If the user agent cannot display the resource it must either leave it out as if it were not specified or display some indication that the resource cannot be displayed.”

coming from CSS 2.1, section 12.2 The 'content' property

So, a missing image icon is an acceptable, reasonable indication that the resource cannot be displayed.

1. [Moz] before-after-table-whitespace-001 ; More info: http://lists.w3.org/Archives/Public/public-css-testsuite/2010Nov/0041.html
2. [Moz] before-after-images-001 ; “before-after-images-001 is invalid, as it assumes a particular

treatment of broken images in 'content'.” coming from http://lists.w3.org/Archives/Public/public-css-testsuite/2010Dec/0175.html

1. orphans-001
2. orphans-00*
3. widows-00*
4. Also any “paged” test cases

• http://lists.w3.org/Archives/Public/public-css-testsuite/2007Jul/0011.html
• Some tests are assuming the system has access to glyphs for non-Latin fonts. If this isn't the case, the test could pass without actually testing anything.