如何在宽度上执行此操作?灰色的中间div是100% - 50px - 50px。请显示代码;下面这个形象是我的猜测HTML5 CSS3页脚栏
实例:(http://mediahood.net/mesgr.png)
<div style="position:absolute;left:0px;width:50px;height:50px;">
<div style="width:50;height:50px;background-color:#000;margin:0px;">
<img id='txtrattach' src="/assets/txtr-attach.png" height='50px'></div>
</div>
<div style="position:absolute;left:50px;width:258px;height:50px;font-family:'Harabara';font-size:12px;">
<input id="txtrinput" type="text" name='message' onKeyPress='return charLimit(this)' onKeyUp='return characterCount(this)'>
</div>
<div style="position:absolute;right:0px;width:50px;height:50px;">
<div style="width:50px;height:50px;background-color:#000;margin:0px;">
<span id='charCount'>150</span><span id='charCount2'> chars.</span>
<input id='txtrsend' src="/assets/txtr-enter.png" height='50px' name="send" type="image" value="Send">
</div>
</div>
</dov>
您也可以尝试浮动:左;在你的三个内部divs上 – CRice