Ping single column coming soon page

I am open for any feedback, thank you for your time and help. I really don't know why the rounded-fullis not showing on mobile view on github pages, but it seems to work on chrome developer tools.

<input
class="p-3 mx-auto w-[20.625rem] rounded-full pl-9 bg-white outline outline-1 outline-paleBlue md:w-[25rem] md:mx-0"
type="email"
name="email"
id="email"
aria-label="Your email address"
placeholder="Your email address..."
/>