center div vertically tailwind
<div class="flex items-center justify-center h-screen">...</div>Source:www.tailwindtoolbox.com
vertical align span tailwindscss
<span class="inline-block align-middle ...">...</span>Source: tailwindcss.com
<div class="flex items-center justify-center h-screen">...</div><span class="inline-block align-middle ...">...</span>