HTML 代码
<div class="flex items-center justify-center min-h-screen bg-gray-100 dark:bg-gray-900 p-4">
<div class="relative w-full max-w-md">
<input type="text" class="p-4 pl-10 pr-4 text-gray-900 bg-white border border-gray-300 rounded-lg shadow-lg dark:bg-gray-800 dark:text-white dark:border-gray-700 focus:outline-none focus:ring-2 focus:ring-blue-500 dark:focus:ring-blue-400 placeholder-gray-400" placeholder="Search..." />
<svg class="absolute left-3 top-3 w-5 h-5 text-gray-400 dark:text-gray-500" xmlns="http://www.w3.org/2000/svg" fill="none" viewBox="0 0 24 24" stroke="currentColor">
<path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M10 6a4 4 0 1 1 0 8 4 4 0 0 1 0-8zm4 0a8 8 0 1 0 0 16 8 8 0 0 0 0-16z" />
</svg>
</div>
</div>