HTML 代码
<div class="relative flex justify-center items-center font-sans dark:bg-gray-900 bg-gray-100 p-4">
<div class="group relative inline-block text-left">
<div>
<button type="button" class="inline-flex justify-center items-center w-full rounded-md border border-gray-400 dark:border-gray-600 shadow-sm px-4 py-2 bg-white dark:bg-gray-800 text-sm font-medium text-gray-700 dark:text-gray-200 hover:bg-gray-50 dark:hover:bg-gray-700 focus:outline-none focus:ring-2 focus:ring-offset-2 focus:ring-emerald-500 dark:focus:ring-offset-gray-900 dark:focus:ring-emerald-600 transition-all duration-300" id="menu-button" aria-expanded="true" aria-haspopup="true">
Sections
<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.
Entering: "transition ease-out duration-100"
From: "transform opacity-0 scale-95"
To: "transform opacity-100 scale-100"
Leaving: "transition ease-in duration-75"
From: "transform opacity-100 scale-100"
To: "transform opacity-0 scale-95"
-->
<div class="opacity-0 scale-95 group-hover:opacity-100 group-hover:scale-100 duration-200 ease-out 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 focus:outline-none transition-all" 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-200 block px-4 py-2 text-sm hover:bg-emerald-500 dark:hover:bg-emerald-600 hover:text-white dark:hover:text-white transition-colors duration-200" role="menuitem" tabindex="-1" id="menu-item-0">Latest News</a>
<a href="#" class="text-gray-700 dark:text-gray-200 block px-4 py-2 text-sm hover:bg-emerald-500 dark:hover:bg-emerald-600 hover:text-white dark:hover:text-white transition-colors duration-200" role="menuitem" tabindex="-1" id="menu-item-1">Politics</a>
<a href="#" class="text-gray-700 dark:text-gray-200 block px-4 py-2 text-sm hover:bg-emerald-500 dark:hover:bg-emerald-600 hover:text-white dark:hover:text-white transition-colors duration-200" role="menuitem" tabindex="-1" id="menu-item-2">Business</a>
<a href="#" class="text-gray-700 dark:text-gray-200 block px-4 py-2 text-sm hover:bg-emerald-500 dark:hover:bg-emerald-600 hover:text-white dark:hover:text-white transition-colors duration-200" role="menuitem" tabindex="-1" id="menu-item-3">Technology</a>
<a href="#" class="text-gray-700 dark:text-gray-200 block px-4 py-2 text-sm hover:bg-emerald-500 dark:hover:bg-emerald-600 hover:text-white dark:hover:text-white transition-colors duration-200" role="menuitem" tabindex="-1" id="menu-item-4">Opinion</a>
<a href="#" class="text-gray-700 dark:text-gray-200 block px-4 py-2 text-sm hover:bg-emerald-500 dark:hover:bg-emerald-600 hover:text-white dark:hover:text-white transition-colors duration-200" role="menuitem" tabindex="-1" id="menu-item-5">Sports</a>
</div>
</div>
</div>
</div>