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Consider the following HTML:
<html> <head> <style> TABLE.data TD.priceCell { background-color: #EEE; text-align: center; color: #000; } div.datagrid table { border-collapse: collapse; } div.datagrid table tbody { position: relative; } </style> </head> <body> <div id="contents" class="datagrid"> <table class="data" id="tableHeader"> <thead> <tr class="fixed-row"> <th>Product</th> <th class="HeaderBlueWeekDay">Price</th> <th class="HeaderBlueWeekDay">Discount</th> </tr> </thead> <tbody> <tr style="font-style: italic;"> <td>Keyboard</td> <td class="priceCell">20</td> <td style="border-right: #3D84FF 1px solid; border-left: #3D84FF 1px solid;" class="priceCell">2</td> </tr> </tbody> </table> </div> </body> </html>Notice that the last cell has a left and a right border in its inline style. You (or at least I) would expect this to be visible. In IE, this is the case. But in Firefox (6), this is not. You can solve this by:
div.datagrid table tbody in the CSS div.datagrid table tbody to div.datagrid table in the CSS background-color on table.data td.priceCell in the CSS border-collapse on div.datagrid table in the CSS This is a simplified version of our code; we also solved it (by choosing option 2). But what I'm wondering about is:
And especially: what is the reason Firefox wouldn't show the borders when the CSS is as it is?
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collapse: It is used to collapse adjacent cells and make common border. initial: It is used to set border-collapse property to its default value. inherit: It is used when border-collapse property inherit from its parent elements.
border-collapse: collapse | separate; Initial value: separate. Applies to: table and inline-table elements. Inherited: yes.
Just ran into this issue and came to a css only solution: just add background-clip: padding-box to your td element.
See this article for more information: https://developer.mozilla.org/en-US/docs/CSS/background-clip
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This looks like a Firefox bug to me. The backgrounds are painting over the borders; you can see it if you use a translucent background color.
I filed https://bugzilla.mozilla.org/show_bug.cgi?id=688556
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