CSS伪类与伪选择器 [英] CSS pseudo-class vs. pseudo-selector

问题描述

这是一个古怪的问题，但也许值得一问.从机械上来说，CSS中的伪类和伪选择器之间是否存在区别?我们在此处互换使用该术语，但似乎有两个原因是有原因的.区分两者有什么用?

This is a bit of a pedantic question, but perhaps worth asking. Is there, mechanically, a difference between a pseudo-class and a pseudo-selector in CSS? We use the term interchangeably around here, but it seems that there's a reason for the two terms. Is there any use to differentiating the two?

推荐答案

A pseudo-class是指定的东西，而pseudo-selector是一个伪造的单词.

A pseudo-class is a specified thing, while pseudo-selector is a made up word.

(与此同时，当满足某些条件时(例如，鼠标指向它，或者它是它的父对象的第一个孩子)，伪类与一个元素匹配)，而伪元素是可以匹配的，但不是真实的元素或整个元素，例如元素之前的东西"或元素中的第一行文字".)

(Meanwhile, a pseudo-class matches an element when certain conditions are met (e.g. the mouse is pointing at it, or it is the first child of its parent), while a pseudo-element is something that can be matched but isn't a real or whole element, such as "Thing before an element" or "First line of text in an element".)

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