960 grid clearfix vs HTML5 Boilerplate clearfix - 有什么区别?

时间:2011-06-29 17:06:00

标签: css grid boilerplate 960.gs clearfix

960 grid的clearfix vs HTML5 Boilerplate的clearfix - 有什么区别?

这是Nathan Smith的960网格css中的clearfix:

/* http://www.yuiblog.com/blog/2010/09/27/clearfix-reloaded-overflowhidden-demystified */

.clearfix:before,
.clearfix:after {
  content: '\0020';
  display: block;
  overflow: hidden;
  visibility: hidden;
  width: 0;
  height: 0;
}

.clearfix:after {
  clear: both;
}

/*
  The following zoom:1 rule is specifically for IE6 + IE7.
  Move to separate stylesheet if invalid CSS is a problem.
*/

.clearfix {
  zoom: 1;
}

这是Paul Irish的HTML5 Boilerplate中的clearfix:

/* The Magnificent Clearfix: Updated to prevent margin-collapsing on child elements.
   j.mp/bestclearfix */

.clearfix:before, .clearfix:after {
    content: "\0020"; 
    display: block; 
    height: 0; 
    overflow: hidden;
}

.clearfix:after { clear: both; }

/* Fix clearfix: blueprintcss.lighthouseapp.com/projects/15318/tickets/5-extra-margin-padding-bottom-of-page */

.clearfix { zoom: 1; }

正如您所看到的,他们非常相似。然而它们是不同的。

有没有人对此有任何见解?

哪个更好,为什么?

2 个答案:

答案 0 :(得分:5)

唯一的区别是960在.clearfix:before, .clearfix:after内有这个:

visibility: hidden;
width: 0;

除此之外,它们完全相同。

height: 0; overflow: hidden 删除任何其他声明隐藏伪元素的需要。

我的理论是,HTML5 Boilerplate人员已经严格核实,任何浏览器都不需要这两个额外的声明,然后将其删除。

答案 1 :(得分:5)

我们的clearfix已更新至:

.clearfix:before, .clearfix:after { content: ""; display: table; }
.clearfix:after { clear: both; }  
.clearfix { zoom: 1; }

详情见this post by Nicolas Gallagher