HTML 代码
<div class="flex items-center justify-center min-h-screen bg-gray-900">
<div class="relative">
<div class="h-24 w-24 rounded-full border-t-8 border-b-8 border-purple-500"></div>
<div class="absolute top-0 left-0 h-24 w-24 rounded-full border-t-8 border-b-8 border-pink-500 animate-spin"></div>
</div>
</div>