在Chrome和Safari和thead进行双边距分隔

我有一个表，它使用 thead 和 tbody 。 表的 border-spacing 设置，并且在Chrome和Safari中标题行 em>和剩下的加倍。

I have a table that uses thead and tbody. The table has border-spacing set, and in Chrome and Safari the space between the header row and the rest is doubled.

它被报告为 Chrome问题去年年底，但这是我能找到的唯一参考。

It was reported as an issue for Chrome late last year, but that's the only reference to this I can find.

有没有其他人有过这种情况，或者知道如何解决它？

Has anyone else had this, or know how to get around it?

<table style="border-spacing: 0 5px">
<thead>
    <tr>
        <th>Heading 1</th>
        <th>Heading 2</th>
        <th>Heading 3</th>
    </tr>
</thead>
<tbody>
    <tr>
        <td>Cell 1</td>
        <td>Cell 2</td>
        <td>Cell 3</td>
    </tr>
</tbody>

行等间距）在Firefox中，不知道有关IE。

It displays as expected (all rows equally spaced) in Firefox, not sure about IE.