User-Agent: Mozilla/5.0 (Windows; U; Windows NT 5.0; en-US; rv:1.7) Gecko/20040803 Firefox/0.9.3 Build Identifier: Mozilla/5.0 (Windows; U; Windows NT 5.0; en-US; rv:1.7) Gecko/20040803 Firefox/0.9.3 This page (which seems to have been generated by MicroVision WebExpress) has problems with text vertically overlapping text and other table elements. The problems are most pronounced near the bottom of the page (specifically in the chart labeled Natural Rubber Latex). The overlap (in proportion to text height, anyway) increases with smaller font sizes. Also seen with Mozilla/5.0 (Windows; U; Windows NT 5.0; en-US; rv:1.8a3) Gecko/20040817 Mozilla/5.0 (Windows; U; Windows NT 5.0; en-US; rv:1.4) Gecko/20030624 Netscape/7.1 (ax) The HTML here is probably not great (perhaps this is an evangelism issue?). http://validator.w3.org/check?uri=http%3A%2F%2Fwww.pechsiam.com%2Fallabout4.htm produces quite a bit of output. However, IE 6 does a more legible job, rendering it at various font sizes without overlap (not a perfect job though - the text Specifications: (at the top of the 1st column in the Natural Rubber Latex) is pretty much thrown away, although you can see the bottom of it peeking out at the largest font size). I'm not into the details of HTML tables (yeah, I know they're not just details if you're implementing them or trying to exploit them to the fullest). I did a search for a matching bug and nothing jumped out at me. But I wouldn't be surprised if someone who knew the territory better found that this was a duplicate of something already filed. Reproducible: Always Steps to Reproduce: 1. go to http://www.pechsiam.com/allabout4.htm 2. shrink the font size a few times (CTRL/-) 3. go to the bottom of the page Actual Results: saw a bunch of text vertically overlapping other text and other table elements Expected Results: rendered text without overlap
We would need a reduced testcase here (www.mozilla.org/newlayout/bugathon.html)
Created attachment 160641 [details] testcase In this testcase I concentrated on the four links near the end of the page. As you see, this problem is not related to tables, it is caused by the paragraphs having a top margin of -14pt. In Opera and IE, this seems to be equivalent with the default margin between paragraphs; Mozilla uses 1em as the default bottom margin, so the margin gets smaller with smaller font sizes.
I believe the margins collapse
Component: Layout: Tables → Layout: Block and Inline
Keywords: qawanted → testcase
After carefully examining attachment 160641 [details] and carefully reading the bug report description, I am convinced that the observed vertically overlapping text over other text and over other table elements is due to margin collapsing. IE6 was notoriously known for having lots of bugs with margin collapsing. Therefore, I am Resolving as INVALID
Status: UNCONFIRMED → RESOLVED
Last Resolved: 2 years ago
Resolution: --- → INVALID
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