CSS Diagonal Borders Still Not Rendering Properly on Firefox

The title pretty much says it all. These days I was working on a small web project and while creating the so well known triangle effect using CSS borders I?ve noticed some rendering inconsistencies on Firefox I thought they were fixed by now.
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Recently I was working on a small web project and while creating the so-well-known...

Source: http://feeds.dzone.com/~r/zones/css/~3/ICdmQ24pkUQ/css-diagonal-borders-still-not

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