Stackoverflow - html: hover table column

http://stackoverflow.com/q/1553571/918414

by Ayyappan Sakthivadivel

HTML

<table>
    <tr>
       <td>50kg</td><td>55kg</td><td>60kg</td><td>65kg</td><td>70kg</td>
    </tr>

    <tr>
        <td>20</td><td>21</td><td>23</td><td>25</td><td>27</td>
    </tr>

    <tr>
        <td>18</td><td>20</td><td>22</td><td>24</td><td>26</td>
    </tr>

    <tr>
        <td>17</td><td>19</td><td>21</td><td>23</td><td>25</td>
    </tr>

    <tr>
        <td>16</td><td>18</td><td>20</td><td>22</td><td>24</td>
    </tr>
</table>


























































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































<script>

/* by: thinkingstiff.com
license: http://creativecommons.org/licenses/by-nc-sa/3.0/us/ */

var headerUri = 'http://stackoverflow.com/q/1553571/918414',
    headerCaption =...

CSS

table {
    border-spacing: 0;
    border-collapse: collapse;
    overflow: hidden;
    z-index: 1;
}

td, th, .ff-fix {
    cursor: pointer;
    padding: 10px;
    position: relative;
}

td:hover::after,
.ff-fix:hover::after { 
    background-color: #ffa;
    content: '\00a0';  
    height: 10000px;    
    left: 0;
    position: absolute;  
    top: -5000px;
    width: 100%;
    z-index: -1;        
}

JavaScript

function firefoxFix() {
  
    if ( /firefox/.test( window.navigator.userAgent.toLowerCase() ) ) {
        
        var tds = document.getElementsByTagName( 'td' );
        
        for( var index = 0; index < tds.length; index++ ) {
            tds[index].innerHTML = '<div class="ff-fix">' + tds[index].innerHTML + '</div>';                     
        };
        
        var style = '<style>'
            + 'td { padding: 0 !important; }' 
            + 'td:hover::before, td:hover::after { background-color: transparent !important; }'
            + '</style>';
        document.head.insertAdjacentHTML( 'beforeEnd', style );
        
    };
    
};

firefoxFix();