JSFiddle - React, Tailwind, and code Playground

HTML

<p class="uppercase">do or die.co.in</p>
<p class="lowercase">do or die.co.in</p>
<p class="capitalize">do or die.co.in</p>
<p class="capitalize">do or die co in</p>

CSS

p.uppercase {
    text-transform: uppercase;
}

p.lowercase {
    text-transform: lowercase;
}

p.capitalize {
    text-transform: capitalize;
}