如何使3列布局填充100%宽度?

jsFiddle:
http://jsfiddle.net/mYkjQ/

如何让div2 Button2填充窗口宽度的其余部分?

谢谢.

CSS

td { border:solid 1px #000; float:left; }

#div1 { width:30%; border:solid 1px #000; float:left; }
#div2 { border:solid 1px #000; float:left; }
#div3 { width:30%; border:solid 1px #000; float:right; }

#Button1 { width:100% }
#Button2 { width:100% }
#Button3 { width:100% }

HTML

<div id="div1">
    <button id="Button1">Button 1</button>
</div>
<div id="div2">
    <button id="Button2">Button 2</button>
</div>
<div id="div3">
    <button id="Button3">Button 3</button>
</div>

最佳答案 通常的方法是将所有3个div-s浮动到左侧,并删除边框,因为在某些浏览器上它会因为1个像素而中断.

如果你真的需要边框,那么这样做:

<style type="text/css">
    #div1, #div3 { float:left; width:30%; }
    #div2 { float:left; width:40%; }
    #subdiv1, #subdiv2, #subdiv3 { border:solid 1px #000; }
    #Button1, #Button2, #Button3 { width:100% }
</style>

<div id="div1">
    <div id="subdiv1">
        <button id="Button1">Button 1</button>
    </div>
</div>
<div id="div2">
    <div id="subdiv2">
        <button id="Button2">Button 2</button>
    </div>
</div>
<div id="div3">
    <div id="subdiv3">
        <button id="Button3">Button 3</button>
    </div>
</div>

编辑1:jsfiddle for testing – >更改包装器宽度,看看它是否可以缩放到任何宽度而不会破坏…

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