Exo.
clone
this git- run :
composer install
to fetch 3rd party
- Clean and optimize HTML code, for speed, accessibility, social sharing, etc.
- Add CSS to get a nice responsive form. (CSS framework not allow)
- Develop email responsive which fit well on Gmail / Yahoo and Thunderbird client.
- Join 3 screenshots of your email: 1 x Webmail (Gmail/Yahoo/Orange..) desktop, 1 x smartphone, 1 x Thunderbird.
Design form XD : https://xd.adobe.com/view/6e443a70-4484-44e7-4638-8a584f571eb8-1875/
TEST on your mobile, TEST on your device, TEST, TEST, TEST... and Have fun !