CSS：它呈现“ul> li“快于“ul li”？ [英] CSS: Does it render "ul > li" faster than "ul li"?

问题描述

使用>而不是让我从更少的人那里得到更快的呈现？

using ">" rather than " " make the rendered faster as I heard from few people?

.slide:hover > div > span {
  border-color: #c8c8c8;
}

或

.slide:hover div span {
  border-color: #c8c8c8;
}

非常感谢！

更新：问题

update: question

推荐答案

你应该非常认真地重新考虑听听告诉你这种类型的东西的人。

You should very seriously reconsider listening to the people who tell you this type of thing.

这种差异在最佳时是完全不重要的。没有人应该浪费时间，精力或脑力考虑这些事情。这不是一个有用的优化。不要陷入过早优化的陷阱，特别是对于像HTML / CSS这样的动态语言。

The difference is utterly insignificant at best. No one should waste time, energy, or brainpower considering such things. This isn't a useful optimization. Don't fall into the trap of premature optimization, especially for a dynamic language like HTML/CSS.

编写清晰，可维护和功能的代码 first ，然后再担心其他任何操作。

如果 ul> li 看起来比 ul li 更清楚，然后这样写。如果没有，不要。保持简单。

Write code that is clear, maintainable, and functional first, before worrying about anything else.
If ul > li looks clearer to you than ul li, then write it that way. If not, don't. Keep it simple.

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