unwanted CSS sprite border in FireFox

Issue

I’m trying to use the css sprites technique to recreate a good rollover effect.
Until now I was able to achive this result http://iltuttologo.com/index.php/abarabino
When you pass with the mouse over the city, the image is replaced with a night versiont of that and everything works good except that on firefox I have an unwanted central border.

This is the css that I’ve used :

        @charset "utf-8";
        /* CSS Document */

        #mondo   {
          border: none;
          border: hidden;
        }
        .tab {
          width: 840px;
          padding: 0px;
          margin: 0px;

        }
        .tab td {
          display: inline-block;
          padding: 0px;
          margin: 0px;
          width: 420px;
        }
        a.evento1 {
          display: block;
          height: 260px;
          width: 420px;
        text-indent:-9999px;
        background:url(../images/sprite.png) 0px 0px no-repeat;
        float: left;
          border: none;
        }
        a.evento1:link {
          display: block;
          height: 260px;
          width: 420px;
        text-indent:-9999px;
        background:url(../images/sprite.png) 0px -780px no-repeat;
        float: left;
          border: none;
        }
        a.evento1:hover {
          display: block;
          height: 260px;
          width: 420px;
        text-indent:-9999px;
        background:url(../images/sprite.png) 0px 0px no-repeat;
        float: left;
          border: none;
        }
        a.evento2 {
          display: block;
          height: 260px;
          width: 420px;
        text-indent:-9999px;
        background:url(../images/sprite.png) -420px 0px no-repeat;
        float: left;
          border: none;
        }

        a.evento2:link {
          display: block;
          height: 260px;
          width: 420px;
        text-indent:-9999px;
        background:url(../images/sprite.png) -420px -780px no-repeat;
        float: left;
          border: none;
        }

        a.evento2:hover {
        display: block;
          height: 260px;
          width: 420px;
        text-indent:-9999px;
        background:url(../images/sprite.png) -420px 0px no-repeat;
        float: left;
          border: none;
        }
        a.evento3 {
        display: block;
          height: 260px;
          width: 420px;
        text-indent:-9999px;
        background:url(../images/sprite.png) 0px -260px no-repeat;
        float: left;
          border: none;
        }
        a.evento3:link {
        display: block;
          height: 260px;
          width: 420px;
        text-indent:-9999px;
        background:url(../images/sprite.png) 0px -1040px no-repeat;
        float: left;
          border: none;
        }
        a.evento3:hover {
        display: block;
          height: 260px;
          width: 420px;
        text-indent:-9999px;
        background:url(../images/sprite.png) 0px -260px no-repeat;
        float: left;
          border: none;
        }
        a.evento4 {
        display: block;
          height: 520px;
          width: 420px;
        text-indent:-9999px;
        background:url(../images/sprite.png) -420px -260px no-repeat;
        float: left;
          border: none;
        }
        a.evento4:link {
        display: block;
          height: 520px;
          width: 420px;
        text-indent:-9999px;
        background:url(../images/sprite.png) -420px -1040px no-repeat;
        float: left;
          border: none;
        }
        a.evento4:hover {
        display: block;
          height: 520px;
          width: 420px;
        text-indent:-9999px;
        background:url(../images/sprite.png) -420px -260px no-repeat;
        float: left;
          border: none;
        }
        a.evento3_extra {
        display: block;
          height: 520px;
          width: 420px;
        text-indent:-9999px;
        background:url(../images/sprite.png) 0px -260px no-repeat;
        float: left;
          border: none;
        }
        a.evento3_extra:link {
        display: block;
          height: 520px;
          width: 420px;
        text-indent:-9999px;
        background:url(../images/sprite.png) 0px -1040px no-repeat;
        float: left;
          border: none;
        }
        a.evento3_extra:hover {
        display: block;
          height: 520px;
          width: 420px;
        text-indent:-9999px;
        background:url(../images/sprite.png) 0px -260px no-repeat;
        float: left;
          border: none;
        }
        a.evento5 {
        display: block;
          height: 260px;
          width: 420px;
        text-indent:-9999px;
        background:url(../images/sprite.png) 0px -520px no-repeat;
        float: left;
          border: none;
        }

        a.evento5:link {
        display: block;
          height: 260px;
          width: 420px;
        text-indent:-9999px;
        background:url(../images/sprite.png) 0px -1300px no-repeat;
        float: left;
          border: none;
        }
        a.evento5:hover {
        display: block;
          height: 260px;
          width: 420px;
        text-indent:-9999px;
        background:url(../images/sprite.png) 0px -520px no-repeat;
        float: left;
          border: none;
        }

And in the main htlm page I’ve putted a table that loads the css above. Here you are also the html page:

        <table id="mondo" style="margin-left: auto; margin-right: auto; margin-top: 15px;">
        <tbody>
        <tr class="tab">
        <td><a class="evento1" href="#"><img src="images/trasparent_background_260.gif" border="0" alt="Tiziana 50th Birthday" /></a></td>
        <td><a class="evento2" href="#"><img src="images/trasparent_background_260.gif" border="0" alt="Tiziana &amp; Adriano Wedding" /></a></td>
        </tr>
        <tr class="tab">
        <td><a class="evento3" href="#"><img src="images/trasparent_background_260.gif" border="0" alt="Adriano 70th Birthday" style="float: left;" /></a><a class="evento5" href="#"><img src="images/trasparent_background_260.gif" border="0" alt="Adriano 60th Birthday" style="float: left;" /></a></td>
        <td><a class="evento4" href="index.php/abarabino/new-york"><img src="images/trasparent_background_520.gif" border="0" alt="Tiziana 60th Birthday" /></a></td>
        </tr>
        </tbody>
        </table>

I can get a good visualization in Chrome, IE9, Safari but in Firefox I have the unwanted space.

Can you help me to understand why I have this behaviour on Firefox?

Solution

Hey now remove display: inline-block; in your td

As like this

.tab td {
    display: inline-block; //remove this line
    margin: 0;
    padding: 0;
    width: 420px;
}

Answered By – Rohit Azad Malik

This Answer collected from stackoverflow, is licensed under cc by-sa 2.5 , cc by-sa 3.0 and cc by-sa 4.0

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