“大于"是怎么回事?或“>"CSS中使用的字符? [英] How is the "greater than" or ">" character used in CSS?
问题描述
我在 CSS 文件中多次看到这个字符，但我不知道它是如何使用的.谁能向我解释一下，并展示它们在简化页面样式方面有何用处?
I have seen this character a number of times in CSS files but I have no idea how its used. Can anyone explain it to me and show how they are useful in making a page style easier?
推荐答案
这是一个 CSS 子选择器.<代码>P >SPAN 意味着将遵循的样式应用于作为 P 标记的子级的所有 SPAN 标记.
It's a CSS child selector. P > SPAN means applying the style that follows to all SPAN tags that are children of a P tag.
请注意，孩子"的意思是直接后代"，而不仅仅是任何后代.P SPAN 是一个后代选择器，将遵循的样式应用于作为 P 子级的所有 SPAN 标签标记或作为 P 标记的子/后代的任何其他标记的递归子代.<代码>P >SPAN 仅适用于 SPAN 标记，它们是 P 标记的子标记.
Note that "child" means "immediate descendant", not just any descendant. P SPAN is a descendant selector, applying the style that follows to all SPAN tags that are children of a P tag or recursively children of any other tag that is a child/descendant of a P tag. P > SPAN only applies to SPAN tags that are children of a P tag.
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