Gestion des div
http://emmanuelle-menny.com/blog//index.php?pages/balise-div-html Les divs en action
Email responsive
http://webdesign.tutsplus.com/fr/articles/creating-a-simple-responsive-html-email–webdesign-12978
Templates email responsive :
http://speckyboy.com/2014/07/10/free-responsive-email-templates/
https://litmus.com/blog/go-responsive-with-these-7-free-email-templates-from-stamplia