什么是清除CSS样式“float”的最好方法？ [英] What is the best way to clear the CSS style "float"?

问题描述

我很习惯使用< br style =clear：both/> 清除我的浮动广告，但是内容不断变化，我不确定如果这是最好的做法。

I'm pretty accustomed to clearing my floats by using <br style="clear:both"/> but stuff keeps on changing and I am not sure if this is the best practice.

有 CSS hack （从positioneverything）可用，让您实现相同的结果，没有清除div。但是...他们声称黑客是一个有点过时，而你或许应该看看 this hack 。但是..阅读后通过700页的评论:)似乎可能有些地方后面的黑客不工作。

There is a CSS hack (from positioneverything) available that lets you achieve the same result without the clearing div. But... they claim the hack is a little out of date and instead you perhaps should look at this hack. But.. after reading through 700 pages of comments :) it seems there may be some places the latter hack does not work.

我想避免任何javascript黑客因为我想要我的清算工作，无论javascript是否启用。

I would like to avoid any javascript hacks cause I would like my clearing to work regardless of javascript being enabled.

目前最好的做法是以独立于浏览器的方式清除div。

What is the current best practice for clearing divs in a browser independent way?

推荐答案

更新：在2014年，您应该使用一种使用伪元素的clearfix技术，如@RodrigoManguinho所提到的。这是清除浮动的现代方式。对于更新的方法，请参阅Nicholas Gallagher的微观清除：

Update: In 2014, you should use a clearfix technique that utilized pseudo-elements, like the one mentioned by @RodrigoManguinho. This is the modern way of clearing floats. For an even more up to date method, see Nicholas Gallagher's micro clearfix:

/**
 * For modern browsers
 * 1. The space content is one way to avoid an Opera bug when the
 *    contenteditable attribute is included anywhere else in the document.
 *    Otherwise it causes space to appear at the top and bottom of elements
 *    that are clearfixed.
 * 2. The use of `table` rather than `block` is only necessary if using
 *    `:before` to contain the top-margins of child elements.
 */
.cf:before,
.cf:after {
    content: " "; /* 1 */
    display: table; /* 2 */
}

.cf:after {
    clear: both;
}

/**
 * For IE 6/7 only
 * Include this rule to trigger hasLayout and contain floats.
 */
.cf {
    *zoom: 1;
}

原始答案：

我真的不喜欢使用额外的非语义标记，所以我不使用清除元素。而不是仅仅将 overflow：hidden; 应用到float（s）的父级以清除它们。工程交叉浏览器，没有问题。我相信 overflow：auto; 也可以工作。

I really don't like using extra non-semantic markup, so I stay away from using a clearing element. Instead of just apply overflow: hidden; to the parent of the float(s) to clear them. Works cross browser, no problem. I believe overflow: auto; also works.

显然，如果你想使用不同的溢出属性，但是由于IE6扩展盒的错误，我很少有理由故意溢出我的容器。

Obviously, it won't work if you want to use a different overflow property, but because of the IE6 expanding box bug, I rarely have a reason to purposely overflow my containers.

查看有关使用溢出而不是清除，以避免添加额外的标记。

See more info on using overflow instead of clear to avoid adding extra markup.

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