With Simple Header

import { Menu, MenuButton, MenuItem, MenuItems } from '@headlessui/react'
import { ChevronDownIcon } from '@heroicons/react/20/solid'

export default function Example() {
  return (
    <Menu as="div" className="relative inline-block">
      <MenuButton className="inline-flex w-full justify-center gap-x-1.5 rounded-md bg-white px-3 py-2 text-sm font-semibold text-gray-900 shadow-xs inset-ring-1 inset-ring-gray-300 hover:bg-gray-50 dark:bg-white/10 dark:text-white dark:shadow-none dark:inset-ring-white/5 dark:hover:bg-white/20">
        Options
        <ChevronDownIcon aria-hidden="true" className="-mr-1 size-5 text-gray-400" />
      </MenuButton>

      <MenuItems
        transition
        className="absolute right-0 z-10 mt-2 w-56 origin-top-right divide-y divide-gray-100 rounded-md bg-white shadow-lg outline-1 outline-black/5 transition data-closed:scale-95 data-closed:transform data-closed:opacity-0 data-enter:duration-100 data-enter:ease-out data-leave:duration-75 data-leave:ease-in dark:divide-white/10 dark:bg-gray-800 dark:shadow-none dark:-outline-offset-1 dark:outline-white/10"
      >
        <div className="px-4 py-3">
          <p className="text-sm text-gray-700 dark:text-gray-400">Signed in as</p>
          <p className="truncate text-sm font-medium text-gray-900 dark:text-white">tom@example.com</p>
        </div>
        <div className="py-1">
          <MenuItem>
            <a
              href="#"
              className="block px-4 py-2 text-sm text-gray-700 data-focus:bg-gray-100 data-focus:text-gray-900 data-focus:outline-hidden dark:text-gray-300 dark:data-focus:bg-white/5 dark:data-focus:text-white"
            >
              Account settings
            </a>
          </MenuItem>
          <MenuItem>
            <a
              href="#"
              className="block px-4 py-2 text-sm text-gray-700 data-focus:bg-gray-100 data-focus:text-gray-900 data-focus:outline-hidden dark:text-gray-300 dark:data-focus:bg-white/5 dark:data-focus:text-white"
            >
              Support
            </a>
          </MenuItem>
          <MenuItem>
            <a
              href="#"
              className="block px-4 py-2 text-sm text-gray-700 data-focus:bg-gray-100 data-focus:text-gray-900 data-focus:outline-hidden dark:text-gray-300 dark:data-focus:bg-white/5 dark:data-focus:text-white"
            >
              License
            </a>
          </MenuItem>
        </div>
        <div className="py-1">
          <form action="#" method="POST">
            <MenuItem>
              <button
                type="submit"
                className="block w-full px-4 py-2 text-left text-sm text-gray-700 data-focus:bg-gray-100 data-focus:text-gray-900 data-focus:outline-hidden dark:text-gray-300 dark:data-focus:bg-white/5 dark:data-focus:text-white"
              >
                Sign out
              </button>
            </MenuItem>
          </form>
        </div>
      </MenuItems>
    </Menu>
  )
}