style="min-width:600px;"
-courtesy of Chris Wise
Gmail:
* [lang~="x-selector"]:hover { }
Outlook Web:
.class:hover
Yahoo! Web:
.class:hover
-courtesy of Justin at FreshInbox
Use lang as selector with "x-" prefix
* [lang~="x-selector"] { }
<div lang="x-selector"></div>
-courtesy of Justin at FreshInbox
Use lowercase for subject anbd body attribute
<a href="mailto:some_email@email.com?subject=A Subject&body=A Body">email@email.com</a>
-courtesy of SV