在IE8中的链式伪选择器 [英] Chained pseudo-selectors in IE8

问题描述

链接的伪选择器似乎不适用于Windows XP上的IE8。有没有关于这个的文档？

Chained pseudo-selectors do not seem to work in IE8 on Windows XP. Is there any documentation about this?

我正在使用Selectivizr开发一个网站，以使用CSS3选择器，但像这样的风格在IE8不工作，

I'm developing a website using Selectivizr in order to use CSS3 selectors, but a style such as this doesn't work in IE8, whereas it works everywhere else (unsurprisingly):

span:last-child:after {content: "foobar";}

推荐答案

这不是一个错误，选择器本身不匹配。

This is not a bug, it's due to the fact the the selector doesn't match natively.

一个简单的选择器是一个类型选择器或通用选择器，紧跟着零个或多个属性选择器，ID选择器或伪类，以任何顺序。

A simple selector is either a type selector or universal selector followed immediately by zero or more attribute selectors, ID selectors, or pseudo-classes, in any order. The simple selector matches if all of its components match.

在这种情况下，简单选择器是 span： first-child ，它与IE8中的本机匹配，或 span：last-child ，不匹配。

The simple selector in this case is either span:first-child, which matches natively in IE8, or span:last-child, which does not.

一个伪元素可以附加到链中的最后一个简单选择器，在这种情况下，样式信息适用于每个主题的子部分。

One pseudo-element may be appended to the last simple selector in a chain, in which case the style information applies to a subpart of each subject.

在之后加上至 span：first-child 是一个匹配，而将它附加到 span：last-child 不是，并且由于Selectivizr是一个后处理器，它太晚才能保存一天。也许一个预处理器会有更好的运气。

Appending :after to span:first-child is a match, while appending it to span:last-child is not, and since Selectivizr is a post-processor, it comes too late to save the day. Perhaps a pre-processor would have better luck.

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