HTML 代码
<div class="font-sans antialiased text-gray-800 bg-white dark:bg-gray-900 dark:text-gray-200 p-4 sm:p-6 md:p-8">
<!-- Dropdown Container -->
<div class="relative inline-block text-left">
<div>
<button type="button" class="inline-flex justify-center w-full rounded-md border border-gray-300 dark:border-blue-700 shadow-sm px-4 py-2 bg-blue-600 text-sm font-medium text-white hover:bg-blue-700 focus:outline-none focus:ring-2 focus:ring-offset-2 focus:ring-blue-500 dark:bg-blue-800 dark:hover:bg-blue-700 dark:focus:ring-offset-gray-900" id="menu-button" aria-expanded="true" aria-haspopup="true">
Documentation Sections
<!-- Heroicon name: solid/chevron-down -->
<svg class="-mr-1 ml-2 h-5 w-5" xmlns="http://www.w3.org/2000/svg" viewBox="0 0 20 20" fill="currentColor" aria-hidden="true">
<path fill-rule="evenodd" d="M5.293 7.293a1 1 0 011.414 0L10 10.586l3.293-3.293a1 1 0 111.414 1.414l-4 4a1 1 0 01-1.414 0l-4-4a1 1 0 010-1.414z" clip-rule="evenodd" />
</svg>
</button>
</div>
<!-- Dropdown menu, show/hide based on menu state. -->
<div class="origin-top-right absolute right-0 mt-2 w-56 rounded-md shadow-lg bg-white dark:bg-gray-800 ring-1 ring-black ring-opacity-5 divide-y divide-gray-100 dark:divide-blue-700 focus:outline-none" role="menu" aria-orientation="vertical" aria-labelledby="menu-button" tabindex="-1">
<div class="py-1" role="none">
<!-- Active: "bg-gray-100 text-gray-900", Not Active: "text-gray-700" -->
<a href="#" class="text-gray-700 dark:text-gray-300 block px-4 py-2 text-sm hover:bg-gray-100 dark:hover:bg-blue-900" role="menuitem" tabindex="-1" id="menu-item-0">Getting Started</a>
<a href="#" class="text-gray-700 dark:text-gray-300 block px-4 py-2 text-sm hover:bg-gray-100 dark:hover:bg-blue-900" role="menuitem" tabindex="-1" id="menu-item-1">Core Concepts</a>
</div>
<div class="py-1" role="none">
<a href="#" class="text-gray-700 dark:text-gray-300 block px-4 py-2 text-sm hover:bg-gray-100 dark:hover:bg-blue-900" role="menuitem" tabindex="-1" id="menu-item-2">Advanced Guides</a>
<a href="#" class="text-gray-700 dark:text-gray-300 block px-4 py-2 text-sm hover:bg-gray-100 dark:hover:bg-blue-900" role="menuitem" tabindex="-1" id="menu-item-3">API Reference</a>
</div>
<div class="py-1" role="none">
<a href="#" class="text-gray-700 dark:text-gray-300 block px-4 py-2 text-sm hover:bg-gray-100 dark:hover:bg-blue-900" role="menuitem" tabindex="-1" id="menu-item-4">Tutorials</a>
<form method="POST" action="#" role="none">
<button type="submit" class="text-gray-700 dark:text-gray-300 block w-full text-left px-4 py-2 text-sm hover:bg-gray-100 dark:hover:bg-blue-900" role="menuitem" tabindex="-1" id="menu-item-5">Support & FAQ</button>
</form>
</div>
</div>
</div>
<!-- Example of another dropdown or related element - for complexity -->
<div class="relative inline-block text-left ml-4">
<div>
<button type="button" class="inline-flex justify-center w-full rounded-md border border-gray-300 dark:border-blue-700 shadow-sm px-4 py-2 bg-blue-500 text-sm font-medium text-white hover:bg-blue-600 focus:outline-none focus:ring-2 focus:ring-offset-2 focus:ring-blue-400 dark:bg-blue-700 dark:hover:bg-blue-600 dark:focus:ring-offset-gray-900" id="menu-button-2" aria-expanded="true" aria-haspopup="true">
Version
<svg class="-mr-1 ml-2 h-5 w-5" xmlns="http://www.w3.org/2000/svg" viewBox="0 0 20 20" fill="currentColor" aria-hidden="true">
<path fill-rule="evenodd" d="M5.293 7.293a1 1 0 011.414 0L10 10.586l3.293-3.293a1 1 0 111.414 1.414l-4 4a1 1 0 01-1.414 0l-4-4a1 1 0 010-1.414z" clip-rule="evenodd" />
</svg>
</button>
</div>
<div class="origin-top-right absolute right-0 mt-2 w-44 rounded-md shadow-lg bg-white dark:bg-gray-800 ring-1 ring-black ring-opacity-5 divide-y divide-gray-100 dark:divide-blue-700 focus:outline-none" role="menu" aria-orientation="vertical" aria-labelledby="menu-button-2" tabindex="-1">
<div class="py-1" role="none">
<a href="#" class="text-gray-700 dark:text-gray-300 block px-4 py-2 text-sm hover:bg-gray-100 dark:hover:bg-blue-900" role="menuitem" tabindex="-1">v2.0 (Latest)</a>
<a href="#" class="text-gray-700 dark:text-gray-300 block px-4 py-2 text-sm hover:bg-gray-100 dark:hover:bg-blue-900" role="menuitem" tabindex="-1">v1.5</a>
<a href="#" class="text-gray-700 dark:text-gray-300 block px-4 py-2 text-sm hover:bg-gray-100 dark:hover:bg-blue-900" role="menuitem" tabindex="-1">v1.0 (Archive)</a>
</div>
</div>
</div>
<!-- Mobile Menu (example concept - would typically be part of a larger nav) -->
<div class="sm:hidden mt-8">
<button type="button" class="inline-flex items-center justify-center p-2 rounded-md text-gray-500 dark:text-gray-400 hover:text-gray-900 dark:hover:text-gray-100 hover:bg-gray-100 dark:hover:bg-blue-900 focus:outline-none focus:ring-2 focus:ring-inset focus:ring-blue-500" aria-controls="mobile-menu" aria-expanded="false">
<span class="sr-only">Open main menu</span>
<!-- Icon when menu is closed. Heroicon name: outline/menu -->
<svg class="block h-6 w-6" xmlns="http://www.w3.org/2000/svg" fill="none" viewBox="0 0 24 24" stroke="currentColor" aria-hidden="true">
<path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M4 6h16M4 12h16M4 18h16" />
</svg>
<!-- Icon when menu is open. Heroicon name: outline/x -->
<svg class="hidden h-6 w-6" xmlns="http://www.w3.org/2000/svg" fill="none" viewBox="0 0 24 24" stroke="currentColor" aria-hidden="true">
<path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M6 18L18 6M6 6l12 12" />
</svg>
</button>
<div class="space-y-1 px-2 pt-2 pb-3 hidden" id="mobile-menu">
<a href="#" class="bg-blue-100 dark:bg-blue-800 text-blue-700 dark:text-white block px-3 py-2 rounded-md text-base font-medium" aria-current="page">Getting Started</a>
<a href="#" class="text-gray-700 dark:text-gray-300 hover:bg-gray-50 dark:hover:bg-blue-900 hover:text-gray-900 dark:hover:text-gray-100 block px-3 py-2 rounded-md text-base font-medium">Core Concepts</a>
<a href="#" class="text-gray-700 dark:text-gray-300 hover:bg-gray-50 dark:hover:bg-blue-900 hover:text-gray-900 dark:hover:text-gray-100 block px-3 py-2 rounded-md text-base font-medium">Advanced Guides</a>
<a href="#" class="text-gray-700 dark:text-gray-300 hover:bg-gray-50 dark:hover:bg-blue-900 hover:text-gray-900 dark:hover:text-gray-100 block px-3 py-2 rounded-md text-base font-medium">API Reference</a>
</div>
</div>
</div>