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Asked: 2026-06-12T07:53:19+00:00

I can’t get the border width to be 3px solid green in firefox, even

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I can’t get the border width to be 3px solid green in firefox, even though it is working in Chrome. How can I fix this? My code is below.

<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN" "http://www.w3.org/TR/REC-html40/loose.dtd">
<html>
        <head>
                <style>
                           td {border: 3px solid green; background:blue;}
                </style>
        </head>
        <body>
                <table>
                        <tr>
                               <td></td>
                               <td></td>
                               <td></td>
                        </tr>
                        <tr>
                               <td></td>
                               <td></td>
                               <td></td>
                        </tr>
                        <tr>
                               <td></td>
                               <td></td>
                               <td></td>
                        </tr>
                </table>
        </body> 
</html>
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1 Answer

  1. Editorial Team

    To eliminate the spaces and avoid double borders between the cells you have to collapse them, like:

    table {
    border-collapse: collapse;
}

    DEMO

    Also it’s a good idea to use some kind of CSS discrepancy eliminator, which can save you a lot of time and helps avoid situations like this – Normalize CSS or CSS Reset

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