问题描述
我需要一个 css3 选择器来定位一个元素,当 :target 等于元素的 id(简单)或当 :target 为空(不可能?).很难解释,我举个简单的例子.
I need a css3 selector to target an element when the :target equals the id of the element (easy) or when the :target is empty (impossible?). It’s hard to explain, so let me give you a simple example.
div { background: blue; } div:target, div:no-target { background: red; }
当然 :no-target 伪类不存在 ;).不使用 Javascript 有没有办法解决这个问题?提前致谢!
But of course the :no-target pseudo class doesn’t exist ;). Is there a way around this without using Javascript? Thanks in advance!
推荐答案
叹息.我觉得我正在复活一个死去的话题,但它需要一个真正的答案.
Sigh. I feel like I'm resurrecting a dead topic, but it needs a real answer.
仅使用 CSS 就可以做到这一点,只需使用 :last-child 和 一般兄弟组合子,形式为 :target ~ :last-child:
It's possible to do this with CSS alone, just by using :last-child and a general sibling combinator, in the form of :target ~ :last-child:
.pages > .page:target ~ .page:last-child, .pages > .page { display: none; } /* :last-child works, but .page:last-child will not */ .pages > :last-child, .pages > .page:target { display: block; }
这些规则适用于以下步骤:
The rules applies in the following steps:
- 隐藏所有页面
- 同时显示目标页面和最后一页
- 如果一个页面被定位,隐藏最后一页(.page:target ~ .page:last-child)
(现场示例)
显然,这与 旧版本中接受的答案非常相似,前面提到的相关帖子.