给定一些基本的 HTML 结构,您可以重新创建 JavaScript 实现的切换(显示/隐藏)功能:
使用:target:
HTML:
<nav id="nav">
<h2>This would be the 'navigation' element.</h2>
</nav>
<a href="#nav">show navigation</a>
<a href="#">hide navigation</a>
CSS:
nav {
height: 0;
overflow: hidden;
-moz-transition: all 1s linear;
-ms-transition: all 1s linear;
-o-transition: all 1s linear;
-webkit-transition: all 1s linear;
transition: all 1s linear;
}
nav:target {
height: 4em;
color: #000;
background-color: #ffa;
-moz-transition: all 1s linear;
-ms-transition: all 1s linear;
-o-transition: all 1s linear;
-webkit-transition: all 1s linear;
transition: all 1s linear;
}
JS Fiddle demo.
使用:checked:
HTML:
<input type="checkbox" id="switch" />
<nav>
<h2>This would be the 'navigation' element.</h2>
</nav>
<label for="switch">Toggle navigation</label>
CSS:
#switch {
display: none;
}
#switch + nav {
height: 0;
overflow: hidden;
-moz-transition: all 1s linear;
-ms-transition: all 1s linear;
-o-transition: all 1s linear;
-webkit-transition: all 1s linear;
transition: all 1s linear;
}
#switch:checked + nav {
height: 4em;
color: #000;
background-color: #ffa;
-moz-transition: all 1s linear;
-ms-transition: all 1s linear;
-o-transition: all 1s linear;
-webkit-transition: all 1s linear;
transition: all 1s linear;
}
label {
cursor: pointer;
}
JS Fiddle demo.
不幸的是,与“:clicked”选择器最接近的原生 CSS 选择器是 :active 或 :focus 伪类,一旦释放鼠标按钮,其第一个选择器将停止匹配,一旦给定元素不再聚焦(通过键盘或鼠标聚焦文档中的其他位置),其中第二个将停止匹配。
更新了演示,允许切换 label 的文本(使用 CSS 生成的内容):
#switch {
display: none;
}
#switch + nav {
height: 0;
overflow: hidden;
-moz-transition: all 1s linear;
-ms-transition: all 1s linear;
-o-transition: all 1s linear;
-webkit-transition: all 1s linear;
transition: all 1s linear;
}
#switch:checked + nav {
height: 4em;
color: #000;
background-color: #ffa;
-moz-transition: all 1s linear;
-ms-transition: all 1s linear;
-o-transition: all 1s linear;
-webkit-transition: all 1s linear;
transition: all 1s linear;
}
label {
display: inline-block;
cursor: pointer;
}
#switch ~ label::before {
content: 'Show ';
}
#switch:checked ~ label::before {
content: 'Hide ';
}
JS Fiddle demo.
参考资料: