html – 中心DIV内容流体垂直和水平

这是我的例子：

线高不适用于流体div.我的代码目前基于行高,但框的大小会发生变化.那么如何才能在完全中间的链接(内容)？

我想确保这个DIV中的内容总是从顶部和侧面同样居中.垂直和水平居中.

当前代码:(注意样式标记为空白,因为这是动态填充的)

<style type="text/css">
    .box{
    width:468px; /* php changes this sometimes */
    height:60px; /* php changes this sometimes */
    background:#eee;
    text-align:
    center;
    border:
    1px solid rgb(177,172,171);
    line-height: 61px;
    }
    </style>

    <div style="" class="box" id="">
<a style="color:#333;font-weight:bold" href="claimPrize();">Winner!</a>
</div>

解决方法

不久前进入类似的情况,做了一个搜索,发现了一篇关于css-tricks的绝对居中的文章,here是文章和随之而来的测试它的小提琴.

CSS

/* This parent can be any width and height */
.block {
  text-align: center;
}

/* The ghost,nudged to maintain perfect centering */
.block:before {
  content: '';
  display: inline-block;
  height: 100%;
  vertical-align: middle;
  margin-right: -0.25em; /* Adjusts for spacing */
}

/* The element to be centered,can
   also be of any width and height */
.centered {
  display: inline-block;
  vertical-align: middle;
  width: 300px;
}

HTML

<div class="block" style="height: 300px;">

    <div class="centered">
        <h1>Some text</h1>
        <p>But he stole up to us again,and suddenly clapping his hand on my shoulder,said&mdash;"Did ye see anything looking like men going towards that ship a while ago?"</p>
    </div>

</div>

<div class="block" style="height: 200px;">

    <div class="centered">
        <h1>Some text</h1>
        <p>But he stole up to us again,said&mdash;"Did ye see anything looking like men going towards that ship a while ago?"</p>
    </div>

</div>

<div class="block" style="height: 600px;">

    <div class="centered">
        <h1>Some text</h1>
        <p>But he stole up to us again,said&mdash;"Did ye see anything looking like men going towards that ship a while ago?"</p>
    </div>

</div>

演示

http://jsfiddle.net/andresilich/YqKMH/