Hey @tuanphan I'm creating a website - thelayman.co (it's private rn but you can access it using the PW: Sciencerules). It has a newsletter block that I'm having trouble formatting. I want the email field and button to be aligned and centered on desktop and mobile.
I tried some of the code you suggested in earlier comments but now it looks like the attached photos.
This is the custom CSS I have right now
If you can help I'd be so grateful!!