8423 – html { display:table; } renders incorrectly (and underpaints)

RESOLVED FIXED Bug 8423

html { display:table; } renders incorrectly (and underpaints)

https://bugs.webkit.org/show_bug.cgi?id=8423

Summary html { display:table; } renders incorrectly (and underpaints)

Thomas Steinacher

Reported 2006-04-16 05:42:40 PDT

Safari doesn't display a website with html { display:table; } correctly. Try the following example and resize the window: <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> <html> <head> <style> html { display:table; } </style> </head> <body> </body> </html>

Attachments
test case (101 bytes, text/html) 2008-02-20 12:21 PST, Robert Blaut	no flags	Details
View All Add attachment proposed patch, testcase, etc.

Dave Hyatt

Comment 1 2006-09-12 23:36:42 PDT

We don't allow you to alter the display type of the root element, nor do we plan to, since the end results are too problematic to deal with.

mitz

Comment 2 2008-02-20 12:10:14 PST

(In reply to comment #1) > We don't allow you to alter the display type of the root element, nor do we > plan to, since the end results are too problematic to deal with. I do not think this is enforced. The test case does lead to very broken rendering. Bug 17314 has another example (where the root element is not <html>).

mitz

Comment 3 2008-02-20 12:10:22 PST

*** Bug 17314 has been marked as a duplicate of this bug. ***

Robert Blaut

Comment 4 2008-02-20 12:21:38 PST

Created attachment 19233 [details] test case

Ian 'Hixie' Hickson

Comment 5 2008-03-20 12:26:28 PDT

According to CSS2.1 'display' on the root element with any of the following values must be treated as 'block': inline, run-in, table-row-group, table-column, table-column-group, table-header-group, table-footer-group, table-row, table-cell, table-caption, inline-block. However, 'table', 'block', 'list-item', and 'none' must (according to the spec) be supported. (Also, 'inline-table' becomes 'table'.) See CSS2.1, 9.7 Relationships between 'display', 'position', and 'float'.

Dave Hyatt

Comment 6 2008-03-20 14:40:04 PDT

Yeah we currently only allow the root element to be a block.

mitz

Comment 7 2008-03-20 14:45:24 PDT

(In reply to comment #6) > Yeah we currently only allow the root element to be a block. > See comment #2

Dave Hyatt

Comment 8 2008-03-20 15:15:57 PDT

Yeah, looks like we just require it to be a block-level element, so we're correct according to CSS2.1 (just with misrendering). This code in adjustRenderStyle enforces that: if (style->display() != BLOCK && style->display() != TABLE && style->display() != BOX && (style->position() == AbsolutePosition || style->position() == FixedPosition || style->floating() != FNONE || (e && e->document()->documentElement() == e))) { if (style->display() == INLINE_TABLE) style->setDisplay(TABLE); else if (style->display() == INLINE_BOX) style->setDisplay(BOX); else if (style->display() == LIST_ITEM) { // It is a WinIE bug that floated list items lose their bullets, so we'll emulate the quirk, // but only in quirks mode. if (!m_strictParsing && style->floating() != FNONE) style->setDisplay(BLOCK); } else style->setDisplay(BLOCK); }

mitz

Comment 9 2008-04-16 00:13:42 PDT

*** Bug 11577 has been marked as a duplicate of this bug. ***

mitz

Comment 10 2008-04-16 00:13:49 PDT

*** Bug 18524 has been marked as a duplicate of this bug. ***

mitz

Comment 11 2010-03-16 07:40:59 PDT