如何居中浮动元素? [英] How do I center floated elements?

问题描述

我正在执行分页，它需要居中.问题在于链接需要显示为块，因此它们需要浮动.但是然后，text-align: center;不适用于它们.我可以通过给左边的wrapper div填充来实现，但是每个页面都有不同数量的页面，所以这是行不通的.这是我的代码:

I'm implementing pagination, and it needs to be centered. The problem is that the links need to be displayed as block, so they need to be floated. But then, text-align: center; doesn't work on them. I could achieve it by giving the wrapper div padding of left, but every page will have a different number of pages, so that wouldn't work. Here's my code:

.pagination {
  text-align: center;
}
.pagination a {
  display: block;
  width: 30px;
  height: 30px;
  float: left;
  margin-left: 3px;
  background: url(/images/structure/pagination-button.png);
}
.pagination a.last {
  width: 90px;
  background: url(/images/structure/pagination-button-last.png);
}
.pagination a.first {
  width: 60px;
  background: url(/images/structure/pagination-button-first.png);
}

<div class='pagination'>
  <a class='first' href='#'>First</a>
  <a href='#'>1</a>
  <a href='#'>2</a>
  <a href='#'>3</a>
  <a class='last' href='#'>Last</a>
</div>
<!-- end: .pagination -->

要弄清主意，我想要什么:

To get the idea, what I want:

推荐答案

删除float并使用inline-block可能会解决您的问题:

Removing floats, and using inline-block may fix your problems:

 .pagination a {
-    display: block;
+    display: inline-block;
     width: 30px;
     height: 30px;
-    float: left;
     margin-left: 3px;
     background: url(/images/structure/pagination-button.png);
 }

(删除以-开头的行，并添加以+开头的行.)

(remove the lines starting with - and add the lines starting with +.)

.pagination {
  text-align: center;
}
.pagination a {
  + display: inline-block;
  width: 30px;
  height: 30px;
  margin-left: 3px;
  background: url(/images/structure/pagination-button.png);
}
.pagination a.last {
  width: 90px;
  background: url(/images/structure/pagination-button-last.png);
}
.pagination a.first {
  width: 60px;
  background: url(/images/structure/pagination-button-first.png);
}

<div class='pagination'>
  <a class='first' href='#'>First</a>
  <a href='#'>1</a>
  <a href='#'>2</a>
  <a href='#'>3</a>
  <a class='last' href='#'>Last</a>
</div>
<!-- end: .pagination -->

inline-block可以跨浏览器运行，即使在IE6上也可以，只要该元素最初是嵌入式元素即可.

inline-block works cross-browser, even on IE6 as long as the element is originally an inline element.

从 quirksmode 引用:

内联块被内联放置(即与相邻内容位于同一行)，但是它的行为就像一个块.

An inline block is placed inline (ie. on the same line as adjacent content), but it behaves as a block.

这通常可以有效地替换浮点数:

this often can effectively replace floats:

此值的真正用途是当您要向内联元素赋予宽度时.在某些情况下，某些浏览器不允许在真正的内联元素上使用宽度，但是如果您切换到显示:inline-block，则可以设置宽度." ( http://www.quirksmode.org/css/display.html#inlineblock ).

根据 W3C规范:

[inline-block]使元素生成一个内联级别的块容器.内联块的内部被格式化为块框，元素本身被格式化为原子内联级别框.

[inline-block] causes an element to generate an inline-level block container. The inside of an inline-block is formatted as a block box, and the element itself is formatted as an atomic inline-level box.

这篇关于如何居中浮动元素?的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！