浮动嵌套div的填充高度

我正在制作一个基本的评论系统。当评论很短时它是完美的，但是当用户写很多时，评论并不像应有的那么花哨......我尝试用高度：100%；但它并没有像我预期的那样工作。我希望作者信息填写评论的高度。

到目前为止我尝试过的：http://jsfiddle.net/anWVC/3/ http://jsfiddle.net/anWVC/3/

HTML:

<div class='comment'>
    <div class="f-left">
        <small style="font-size: .8em;">23:44 - 10/12/2011</small>
        <img src='http://comenzarjuego.com/wp-content/uploads/2010/02/pikchu.jpg' width='96' alt='Avatar' />

        Pikachu_Monster<br/>
        ------------<br />
        Age: 19<br />
        Comments: 67<br/>
    </div>

    <div>
        Lorem ipsum dolor sit amet, consectetur adipiscing elit. Nulla consequat mattis nibh eget viverra. Vivamus dolor erat, eleifend mollis fringilla nec, sodales in sapien. Praesent sit amet adipiscing augue. Fusce fermentum luctus euismod. Fusce ac elit enim. Maecenas tempor volutpat tempus. Lorem ipsum dolor sit amet, consectetur adipiscing elit. In vitae lectus non sapien consectetur rhoncus. Sed mi mi, sagittis ullamcorper rutrum nec, imperdiet nec libero. Sed commodo orci eleifend mi sagittis et auctor massa convallis.

Nam vitae velit vitae ante eleifend dapibus. Quisque tincidunt risus quis magna sodales non scelerisque elit malesuada. Vivamus mattis diam sed ipsum gravida nec porta odio ullamcorper. Sed at velit eget libero mollis dapibus vitae at sapien. Sed adipiscing lacinia justo ullamcorper hendrerit. Phasellus tempor sodales libero, eget ultrices tortor sollicitudin condimentum. Curabitur id nisi metus. Quisque posuere sapien laoreet est consectetur pretium sed et erat. Etiam eget enim metus. Fusce rutrum blandit porta. Etiam posuere semper accumsan. Curabitur et justo massa. Sed tellus sem, congue a consectetur vitae, tempus quis leo. Ut lacinia gravida neque ac viverra. Cras placerat ante ut justo tempor condimentum. Donec interdum, felis a dapibus hendrerit, augue ante sodales leo, vitae molestie arcu neque a magna. 
    </div>
    <br style="clear: both;">
</div>

CSS:

.f-left{
    float: left;
    text-align:center;
    background: #ccc;
    width: 128px;
    margin-right: 16px;
    height: 100%;
}
.comment{
     background: #aaa;   
}

Thanks!

如果您希望浮动的左侧面板一直拉伸，您可以使用填充和边距来实现一个不错的技巧：请参见此处：http://jsfiddle.net/anWVC/19/ http://jsfiddle.net/anWVC/19/

这个技巧看起来像这样：

.f-left{
     float: left;
     text-align:center;
     background: #ccc;
    width: 128px;
    margin-right: 16px;
    height: 100%;
    padding-bottom:100%; 
    margin-bottom:-100%;
}

请注意，由于此技巧将面板拉伸到容器之外，因此您需要设置容器的overflow to hidden:

.comment{
     background: #aaa;   
    overflow:hidden; 
}