This is an example of a newsletter subscription form designed using HTML, CSS, and Bootstrap framework 4. Bootstrap styles and fonts are imported to the code with their URLs. The form is given the styles of display as table, width as 100%, padding as 27px 40px, background-color as #1c0c2b, margin-top as 45px, border-radius as 3px, and position as relative. The newsletter section has the styles of max-width as 835px, text-align as center, and padding as 27px 0 10p. The font family or form is set as "FontAwesome". The email input field is given the styles of background-color as transparent, width as 74%, margin-right as 25px, height as 47px, font-size as 14px, border-bottom as 1px solid rgba(255,255,255,.06), font color as #fff, and box-shadow as 0 0 0 1000px transperent inset. The submit button has the styles of height as 47px, width as 170px, border-radius as 5px, font-weight as 600,font-size as 15px, background-color as #fd226a, and font color as #fff. Source: https://www.tolmatol.com/newsletter-3/