使用colspan时双点边框 [英] Double dotted border while using colspan

问题描述

我有一个简单的问题，但是搜索网络没有产生任何结果。

I have what seems like a simple problem, but searching the net hasn't yielded any results.

我有一个表

<table>
    <tr>
        <td colspan="3">
            <img src="something.png" />
        </td>
    </tr>
    <tr>
        <td>
            Hello
        </td>
        <td>
            World
        </td>
        <td>
            !
        </td>
    </tr>
</table>

< tr> border-top：dotted 1px black ，除了中心的< td> code>< tr> 。

The <tr> elements all have border-top: dotted 1px black, this works fine apart from the central <td> element in the second <tr>.

此元素具有双边框，因此显示为实线， c $ c> colspan 修正了问题。

This element has a double border and so appears as a solid line, removing the colspan fixes the issue.

我已尝试将 border-collapse：collapse 套用到表格，尝试在第一个< td> 内以& nbsp; 的形式添加内容，

I have tried applying border-collapse: collapse to the the table and this hasn't worked, I have tried adding content in the form of   inside the first <td> instead of an image and this hasn't worked either.

任何想法？

推荐答案

在表格中添加 border-collapse：separate; 可以解决问题，请参阅 http://jsfiddle.net/quyMy/

Adding border-collapse: separate; to your table fixes the issue, see http://jsfiddle.net/quyMy/

我添加了一个动态测试用例。

I've added a dynamic test case to that fiddle. Click anywhere, and the visibility of the original/new table will toggle, allowing you to see the difference much easier.

另一种摆脱意想不到的边框的方法是：点击任意位置，即可查看原始/新表格的显示设置。在包含< td colspan = 3> 的行之后添加一个简单的< tr>< / tr>

Another way to get rid off the unexpected border is to add a plain <tr></tr> after the row containing <td colspan=3>.

这篇关于使用colspan时双点边框的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！