我需要在鼠标悬停时突出显示表格中单元格的行和列。生成的表格是动态的，我得到了 数据库中的值并显示在html表中。表的结构完全如下所示，我无法修改现有结构。 请使用我现有的html代码建议如何使用jquery / css突出显示表中的选定行和列。 请找到小提琴http://jsfiddle.net/0w9yo8x6/78/。
以下是html代码：
<div>
<table border="1px">
<tr>
<td>
<table style="width:100%">
<tr title="Table Header">
<td>
Title
</td>
</tr>
</table>
</td>
</tr>
<tr>
<td>
<table border="1px">
<tr>
<td></td>
<td bgcolor="grey">Header1</td>
<td bgcolor="grey">Header2</td>
<td bgcolor="grey">Header3</td>
<td bgcolor="grey">Header4</td>
<td bgcolor="grey">Header5</td>
</tr>
<tr>
<td bgcolor="grey">Row1</td>
<td>
<table>
<tr>
<td>
Cell1
</td>
</tr>
<tr>
<td class='innerCell'>
Inner cell1
</td>
</tr>
</table>
</td>
<td>
<table>
<tr>
<td>
Cell1
</td>
</tr>
<tr>
<td class='innerCell'>
Inner cell1
</td>
</tr>
</table>
</td>
<td>
<table>
<tr>
<td>
Cell1
</td>
</tr>
<tr>
<td class='innerCell'>
Inner cell1
</td>
</tr>
</table>
</td>
<td>
<table>
<tr>
<td>
Cell1
</td>
</tr>
<tr>
<td class='innerCell'>
Inner cell1
</td>
</tr>
</table>
</td>
<td>
<table>
<tr>
<td>
Cell1
</td>
</tr>
<tr>
<td class='innerCell'>
Inner cell1
</td>
</tr>
</table>
</td>
</tr>
<tr>
<td bgcolor="grey">Row2</td>
<td>
<table>
<tr>
<td>
Cell2
</td>
</tr>
<tr>
<td class='innerCell'>
Inner cell2
</td>
</tr>
</table>
</td>
<td>
<table>
<tr>
<td>
Cell2
</td>
</tr>
<tr>
<td class='innerCell'>
Inner cell2
</td>
</tr>
</table>
</td>
<td>
<table>
<tr>
<td>
Cell2
</td>
</tr>
<tr>
<td class='innerCell'>
Inner cell2
</td>
</tr>
</table>
</td>
<td>
<table>
<tr>
<td>
Cell2
</td>
</tr>
<tr>
<td class='innerCell'>
Inner cell2
</td>
</tr>
</table>
</td>
<td>
<table>
<tr>
<td>
Cell2
</td>
</tr>
<tr>
<td class='innerCell'>
Inner cell2
</td>
</tr>
</table>
</td>
</tr>
<tr>
<td bgcolor="grey">Row3</td>
<td>
<table>
<tr>
<td>
Cell3
</td>
</tr>
<tr>
<td class='innerCell'>
Inner cell3
</td>
</tr>
</table>
</td>
<td>
<table>
<tr>
<td>
Cell3
</td>
</tr>
<tr>
<td class='innerCell'>
Inner cell3
</td>
</tr>
</table>
</td>
<td>
<table>
<tr>
<td>
Cell3
</td>
</tr>
<tr>
<td class='innerCell'>
Inner cell3
</td>
</tr>
</table>
</td>
<td>
<table>
<tr>
<td>
Cell3
</td>
</tr>
<tr>
<td class='innerCell'>
Inner cell3
</td>
</tr>
</table>
</td>
<td>
<table>
<tr>
<td>
Cell3
</td>
</tr>
<tr>
<td class='innerCell'>
Inner cell3
</td>
</tr>
</table>
</td>
</tr>
</table>
</td>
</tr>
</table>
</div>
答案 0 :(得分：8)
突出显示特定的行和列。对于列，我使用nth-child()作为选择器的一部分。希望这有帮助。
注意：我将类.myCell添加到第二级嵌套表的tds中，以便更轻松地使用jquery的选择器名称。
$(document).ready(function() {
$('.myCell').on('mouseover', function() {
$(this).closest('tr').addClass('highlight');
$(this).closest('table').find('.myCell:nth-child(' + ($(this).index() + 1) + ')').addClass('highlight');
});
$('.myCell').on('mouseout', function() {
$(this).closest('tr').removeClass('highlight');
$(this).closest('table').find('.myCell:nth-child(' + ($(this).index() + 1) + ')').removeClass('highlight');
});
});.highlight {
background-color:lightgray;
}<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<div>
<table border="1px">
<tr>
<td>
<table style="width:100%">
<tr title="Table Header">
<td>
Title
</td>
</tr>
</table>
</td>
</tr>
<tr>
<td>
<table border="1px">
<tr>
<td></td>
<td bgcolor="grey">Header1</td>
<td bgcolor="grey">Header2</td>
<td bgcolor="grey">Header3</td>
<td bgcolor="grey">Header4</td>
<td bgcolor="grey">Header5</td>
</tr>
<tr>
<td bgcolor="grey" class="myCell">Row1</td>
<td class="myCell">
<table>
<tr>
<td>
Cell1
</td>
</tr>
<tr>
<td class='innerCell'>
Inner cell1
</td>
</tr>
</table>
</td>
<td class="myCell">
<table>
<tr>
<td>
Cell1
</td>
</tr>
<tr>
<td class='innerCell'>
Inner cell1
</td>
</tr>
</table>
</td>
<td class="myCell">
<table>
<tr>
<td>
Cell1
</td>
</tr>
<tr>
<td class='innerCell'>
Inner cell1
</td>
</tr>
</table>
</td>
<td class="myCell">
<table>
<tr>
<td>
Cell1
</td>
</tr>
<tr>
<td class='innerCell'>
Inner cell1
</td>
</tr>
</table>
</td>
<td class="myCell">
<table>
<tr>
<td>
Cell1
</td>
</tr>
<tr>
<td class='innerCell'>
Inner cell1
</td>
</tr>
</table>
</td>
</tr>
<tr>
<td bgcolor="grey" class="myCell">Row2</td>
<td class="myCell">
<table>
<tr>
<td>
Cell2
</td>
</tr>
<tr>
<td class='innerCell'>
Inner cell2
</td>
</tr>
</table>
</td>
<td class="myCell">
<table>
<tr>
<td>
Cell2
</td>
</tr>
<tr>
<td class='innerCell'>
Inner cell2
</td>
</tr>
</table>
</td>
<td class="myCell">
<table>
<tr>
<td>
Cell2
</td>
</tr>
<tr>
<td class='innerCell'>
Inner cell2
</td>
</tr>
</table>
</td>
<td class="myCell">
<table>
<tr>
<td>
Cell2
</td>
</tr>
<tr>
<td class='innerCell'>
Inner cell2
</td>
</tr>
</table>
</td>
<td class="myCell">
<table>
<tr>
<td>
Cell2
</td>
</tr>
<tr>
<td class='innerCell'>
Inner cell2
</td>
</tr>
</table>
</td>
</tr>
<tr>
<td bgcolor="grey" class="myCell">Row3</td>
<td class="myCell">
<table>
<tr>
<td>
Cell3
</td>
</tr>
<tr>
<td class='innerCell'>
Inner cell3
</td>
</tr>
</table>
</td>
<td class="myCell">
<table>
<tr>
<td>
Cell3
</td>
</tr>
<tr>
<td class='innerCell'>
Inner cell3
</td>
</tr>
</table>
</td>
<td class="myCell">
<table>
<tr>
<td>
Cell3
</td>
</tr>
<tr>
<td class='innerCell'>
Inner cell3
</td>
</tr>
</table>
</td>
<td class="myCell">
<table>
<tr>
<td>
Cell3
</td>
</tr>
<tr>
<td class='innerCell'>
Inner cell3
</td>
</tr>
</table>
</td>
<td class="myCell">
<table>
<tr>
<td>
Cell3
</td>
</tr>
<tr>
<td class='innerCell'>
Inner cell3
</td>
</tr>
</table>
</td>
</tr>
</table>
</td>
</tr>
</table>
</div>
答案 1 :(得分：4)
由于您将表格嵌入两个深层，因此您的CSS应如下所示：
table table tr:hover td {
background-color: #fbc93d;
}
这是一个基于你的小提琴的例子：
答案 2 :(得分：0)
在你的css中试试这个：
td table td:hover{background-color:gray;}
答案 3 :(得分：0)
将表格放在表格中并不是很好的做法，请查看如何使用div和大纲。另请参阅如何使用thead，tbody和colgroups创建表。
希望我能提供帮助。
下面只是HTML代码，需要添加thead和tbody，我会让你想出那个。
<table border="1px">
<colgroup></colgroup>
<colgroup></colgroup>
<colgroup></colgroup>
<colgroup></colgroup>
<colgroup></colgroup>
<tr>
<td></td>
<td bgcolor="grey">Header1</td>
<td bgcolor="grey">Header2</td>
<td bgcolor="grey">Header3</td>
<td bgcolor="grey">Header4</td>
<td bgcolor="grey">Header5</td>
</tr>
<tr>
<td bgcolor="grey">Row1</td>
<td>
<table>
<tr>
<td>
Cell1
</td>
</tr>
<tr>
<td class='innerCell'>
Inner cell1
</td>
</tr>
</table>
</td>
<td>
<table>
<tr>
<td>
Cell1
</td>
</tr>
<tr>
<td class='innerCell'>
Inner cell1
</td>
</tr>
</table>
</td>
<td>
<table>
<tr>
<td>
Cell1
</td>
</tr>
<tr>
<td class='innerCell'>
Inner cell1
</td>
</tr>
</table>
</td>
<td>
<table>
<tr>
<td>
Cell1
</td>
</tr>
<tr>
<td class='innerCell'>
Inner cell1
</td>
</tr>
</table>
</td>
<td>
<table>
<tr>
<td>
Cell1
</td>
</tr>
<tr>
<td class='innerCell'>
Inner cell1
</td>
</tr>
</table>
</td>
</tr>
<tr>
<td bgcolor="grey">Row2</td>
<td>
<table>
<tr>
<td>
Cell2
</td>
</tr>
<tr>
<td class='innerCell'>
Inner cell2
</td>
</tr>
</table>
</td>
<td>
<table>
<tr>
<td>
Cell2
</td>
</tr>
<tr>
<td class='innerCell'>
Inner cell2
</td>
</tr>
</table>
</td>
<td>
<table>
<tr>
<td>
Cell2
</td>
</tr>
<tr>
<td class='innerCell'>
Inner cell2
</td>
</tr>
</table>
</td>
<td>
<table>
<tr>
<td>
Cell2
</td>
</tr>
<tr>
<td class='innerCell'>
Inner cell2
</td>
</tr>
</table>
</td>
<td>
<table>
<tr>
<td>
Cell2
</td>
</tr>
<tr>
<td class='innerCell'>
Inner cell2
</td>
</tr>
</table>
</td>
</tr>
<tr>
<td bgcolor="grey">Row3</td>
<td>
<table>
<tr>
<td>
Cell3
</td>
</tr>
<tr>
<td class='innerCell'>
Inner cell3
</td>
</tr>
</table>
</td>
<td>
<table>
<tr>
<td>
Cell3
</td>
</tr>
<tr>
<td class='innerCell'>
Inner cell3
</td>
</tr>
</table>
</td>
<td>
<table>
<tr>
<td>
Cell3
</td>
</tr>
<tr>
<td class='innerCell'>
Inner cell3
</td>
</tr>
</table>
</td>
<td>
<table>
<tr>
<td>
Cell3
</td>
</tr>
<tr>
<td class='innerCell'>
Inner cell3
</td>
</tr>
</table>
</td>
<td>
<table>
<tr>
<td>
Cell3
</td>
</tr>
<tr>
<td class='innerCell'>
Inner cell3
</td>
</tr>
</table>
</td>
</tr>
</table>