为多个 id 声明相同的 css？

Question

提问by Basic

How do I do it.

我该怎么做。

#foo, #ball, #tree h1 {color: #892828;}

Does not seem to work?

似乎不起作用？

Answer 1

if you want to style all H1 under those Ids, you have to repeat H1 for every one as they don't share anything:

如果您想在这些 Id 下设置所有 H1 的样式，则必须为每个 Id 重复 H1，因为它们不共享任何内容：

#foo h1, #ball h1, #tree h1 {color: #892828;}

what you wrote is equivalent to:

你写的相当于：

#foo {color: #892828;}
#ball {color: #892828;}
#tree h1 {color: #892828;}

Answer 2

You could also assign the same class to each of those h1s and style using that class.

您还可以使用该类为每个 h1 和样式分配相同的类。