巧用aria-current属性和CSS,动态调整导航链接样式 网页开发中,根据页面状态动态改变元素样式是常见需求。本文介绍如何利用
aria-current="page"<https:>属性,为对应的<code><a><https:>标签添加<code>font-medium<https:>样式,实现简洁高效的样式更新。<https:><p>假设HTML结构如下:<https:><div class="code" style="position:relative; padding:0px; margin:0px;"><pre class="brush:php;toolbar:false;"><div class="nav" id="nav">
<a class="group relative px-4" href="https://www.php.cn/link/29a9f8c8460e5e2be4edde557fd83712">home<https:><a class="group relative px-4" href="https://www.php.cn/link/29a9f8c8460e5e2be4edde557fd83712pricing">pricing<https:><a class="group relative px-4" href="https://www.php.cn/link/29a9f8c8460e5e2be4edde557fd83712story">our story<https:><a aria-current="page" class="group relative px-4" href="https://www.php.cn/link/29a9f8c8460e5e2be4edde557fd83712blog">blog<https:><https:><https:><p><code>aria-current="page"<https:>属性标识当前激活的导航项。 我们需要根据此属性,动态为对应的<code><a><https:>标签应用<code>font-medium<https:>样式。由于<code>aria-current="page"<https:>可能出现在不同的<code><a><https:>标签上,CSS<a style="color:#f60; text-decoration:underline;" title="属性选择器" href="https://www.php.cn/zt/70573.html" target="_blank">属性选择器</a>是理想的解决方案。<https:><p>只需在CSS中添加如下规则:<https:><pre class="brush:php;toolbar:false;">a[aria-current="page"] {
font-weight: medium; https://www.php.cn/link/29a9f8c8460e5e2be4edde557fd83712* 等同于font-medium *https://www.php.cn/link/29a9f8c8460e5e2be4edde557fd83712
}<https:><p>这段CSS代码会精准选择所有具有<code>aria-current="page"<https:>属性的<code><a><https:>标签,并设置其<code>font-weight<https:>为<code>medium<https:>,从而实现<code>font-medium<https:>样式的动态应用。 无需JavaScript代码,CSS本身就能完成此任务,简洁且高效。 样式会随着<code>aria-current="page"<https:>属性的添加或移除自动更新,确保样式始终与页面状态同步。<https:></https:></https:></code></https:></code></https:></code></https:></code></https:></a></code></https:></code></p>
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