在 HTML 中设置表格的高度无效 [英] Setting the height of a table in HTML has no effect

问题描述

为什么这个桌子高度不起作用?

Why does this table height not function?

<table border=1 bgcolor="green" width=80% height="30%">
    <tr>
        <td rowspan="2" >
            This is 1st row 1st column
        </td>
        <td >
            2
        </td>
    </tr>
</table>

http://jsfiddle.net/zQNS4/

推荐答案

只需将以下内容添加到您的 css 中:

just add the following to your css:

html, body{
    height: 100%;
}

正如其他人所说，table 没有 height 属性，但无论如何大多数浏览器都会这样做.你可以在jsfiddle上看到结果.

As other said, a table doesn't have a height-attriute, but most browsers intrepet that anyway. you can see the result on jsfiddle.

你需要这样做的原因是任何应该有 % 高度的父元素也必须有一个高度(正如 Shadow Wizard 所说:究竟是什么的 30%?" - 父元素必须有一个高度高度).

The reason you need to do this is that the parent element of anything that should have a height in % must have a height too (as Shadow Wizard said: "30% of what exactly?" - the parent has to have a height).

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