<div class="flex md:flex md:flex-grow flex-row-reverse space-x-1">
<a href="" class="py-4 px-2 text-teal-500 border-b-4 border-teal-300 font-semibold">Home</a>
<a href="" class="py-4 px-2 text-gray-500 font-semibold hover:text-teal-300 transition duration-300">Services</a>
<a href="" class="py-4 px-2 text-gray-500 font-semibold hover:text-teal-300 transition duration-300">About</a>
<a href="" class="py-4 px-2 text-gray-500 font-semibold hover:text-teal-300 transition duration-300">Contact Us</a>
</div>
需要做出哪些改变？