Add Email Subscription Box Template (HTML & CSS Only)

[pranavpanmand]

Description:
I would like to add a responsive Email Subscription Box built completely using HTML and CSS — no JavaScript involved.
This will serve as a template for websites or landing pages where users can subscribe via email.

Key Features:

📬 Clean and modern design

💅 Built using pure HTML and CSS

🧩 Can be reused in multiple website sections like newsletters or blogs

🔒 Simple UI with Font Awesome icons

Purpose:
This component can be a valuable addition under the Form Templates / CSS Art category, helping beginners understand how to build a functional and stylish subscription form without using JavaScript.

Request to Maintainer:
@aayush105 — Please assign this issue to me. I’d love to work on it as part of my open-source contribution.