javascript - 表格和鼠标悬停效果(悬停)

Question

我有这张表:

<table border="1">
<tr>
    <td></td>
    <td>Banana</td>
    <td>Orange</td>
    <td>Plum</td>
</tr>
<tr>
    <td>Banana</td>
    <td>1:1</td>
    <td>1:2</td>
    <td>1:3</td>
</tr>
<tr>
    <td>Orange</td>
    <td>2:1</td>
    <td>1:1</td>
    <td>1,5:1</td>
</tr>
<tr>
    <td>Plum</td>
    <td>1:3</td>
    <td>2:1</td>
    <td>1:1</td>
</tr>

和 CSS:

    td {
    height:60px;
    width:60px;
    text-align:center;
}

td:hover{
    background-color:red;
    }

我想做的是，当我将鼠标指向 1:3 表格单元格时，它应该与 Banana 和 Plum 单元格一起突出显示。

有什么简单的方法吗？

这是 fiddle : http://jsfiddle.net/CZEJT/

Answer 1

如果您不介意其中的一些 Javascript 以确保兼容性，请查看此 JSFiddle

HTML:

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

    <tr>
        <th>160cm</th><td>20</td><td>21</td><td>23</td><td>25</td><td>27</td>
    </tr>

    <tr>
        <th>165cm</th><td>18</td><td>20</td><td>22</td><td>24</td><td>26</td>
    </tr>

    <tr>
        <th>170cm</th><td>17</td><td>19</td><td>21</td><td>23</td><td>25</td>
    </tr>

    <tr>
        <th>175cm</th><td>16</td><td>18</td><td>20</td><td>22</td><td>24</td>
    </tr>
</table>

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;        
}
tr:hover{
  background-color: #ffa;  
}
}

JS:

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();