The iPhone Mail app allows embedded CSS right? I mean, why not solve this for all mobile devices by adding the top bar to all emails, marking it display: none;

The iPhone Mail app allows embedded CSS right? I mean, why not solve this for all mobile devices by adding the top bar to all emails, marking it display: none; and using media queries to show it if it's a mobile resolution? Also, pretty sure the :hover state touch interaction is something anyone who's done any kind of mobile web development knows about.