问题描述
我在几个页面上使用< section>
标记,但在一个页面上我使用< aside>
标记前面带有< section>
标记。
I'm using the <section>
tag on several pages, but on ONE page I'm using an <aside>
tag that is preceded by the <section>
tag.
如果是我有< section>
后紧跟< aside>
,我想申请一个宽度两个并让部分向左浮动,然后向右浮动。
In the case that I have a <section>
immediately followed by an <aside>
, I would like to apply a width to both and have the section float left, and the aside float right.
基本上,如果我有一个< section>
和<搁置>
我希望样式能够像这样工作:
Basically, if I have a <section>
and <aside>
I want the style to work like this:
section {
width: 500px;
float: left;
padding: 8px;
}
aside {
padding:8px;
width:400px;
float:right;
}
如果我只有< section>
我希望它像:
If I only have the <section>
I want it to be like:
section {
padding: 8px;
}
有没有办法可以用CSS3中的条件语句来做到这一点,或者是一个伪类,而不必使用JavaScript,自定义类或单独的CSS文件?
Is there a way I can do this with either a conditional statement in CSS3, or a pseudo-class, without having to use JavaScript, custom classes, or separate CSS files?
推荐答案
这只适用于< section />
来自< aside />
:
<aside>content</aside>
<!-- if there is another node in between, use the '~' selector -->
<section>content</section>
在这种情况下你可以使用一边〜<$ code >或
一边+部分
:
In that case you could use aside ~ section
or aside + section
:
section {
padding: 8px;
}
aside + section {
width: 500px;
float: left;
}
在所有其他情况下,你将不得不使用JavaScript,因为这些选择器只能工作从一个方向,从上到下。
In all other cases you'll have to use JavaScript because these selectors only work in one direction, top to bottom.
此选择器已从规范中删除。
This selector was removed from the specification.
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