制作< td>跨越表中的整个行 [英] Make a <td> span the entire row in a table

问题描述

我对HTML并不陌生，但在一段时间内并没有触及它，而且我遇到了一个令人讨厌的问题。

我有一个两个表行。
我希望第一行有一列 - 意味着它将跨越整行，并且我希望第二行有三列，每行占行宽度的33.3％。 p>

我有这个表的代码：

 < table width = 900pxborder =0cellspacing =0cellpadding =0> 
< tr> 
< td align =center>检查< / td> 
< / tr> 
< tr> 
< td align =center>检查< / td> 
< td align =center>检查< / td> 
< td align =center>检查< / td> 
< / tr> 
< / table> 
  

但奇怪的是，第一行有一列与第二行的第一行相同列，每当我改变其中一个，它也会改变另一个。

如果我给第一行的< td> 宽度值 500px 可以说，它将第二行的第一行< td> 设置为相同的尺寸。

我在做什么错？

解决方案

您应该在第一行的td上使用 colspan 属性。

Colspan =3将单元格设置为流过3列。

 < table width =900pxborder =0cellspacing = 0cellpadding =0> 
< tr> 
< td align =centercolspan =3>检查< / td> 
< / tr> 
< tr> 
< td align =center>检查< / td> 
< td align =center>检查< / td> 
< td align =center>检查< / td> 
< / tr> 
< / table> 
  

I'm not new to HTML but haven't touched it for some good time and I've encountered an annoying problem.

I have a table with two rows.
I want the first row to have one column - means that it will span the entire row, and I want the second row to have three columns, each one 33.3% of the row's width.

I have this code for the table :

<table width="900px" border="0" cellspacing="0" cellpadding="0">
    <tr>
        <td align="center">check</td>
    </tr>
    <tr>
        <td align="center">check</td>
        <td align="center">check</td>
        <td align="center">check</td>
    </tr>
</table>

But what happens is weird, the first row has one column with the same size as the second row's first column, and whenever I change one of them, it changes the other one too.

If I give the first row's <td> the width value of 500px lets say, it sets the second row's first <td> to the same size.

What am I doing wrong ?

解决方案

You should use the colspan attribute on the first row's td.
Colspan="3" will set the cell to flow over 3 columns.

<table width="900px" border="0" cellspacing="0" cellpadding="0">
    <tr>
        <td align="center" colspan="3">check</td>
    </tr>
    <tr>
        <td align="center">check</td>
        <td align="center">check</td>
        <td align="center">check</td>
    </tr>
</table>

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