Remove .ExternalClass rules in reset styles

[hteumeuleu]

In the HTML code generated by MJML, the first <style> tag contains the following rules :

.ExternalClass {
   width: 100%;
}

.ExternalClass * {
    line-height: 100%;
}

This was useful for Outlook.com up to circa 2016. The new versions of Outlook.com since 2016 no longer use the .ExternalClass prefix.

These styles should be safely removed from the generated HTML.

[iRyusa]

Hey !

Let's add that change for the next 4.4 beta then. 👍

Thanks !

[hteumeuleu]

After a bit more research, looks like the .ReadMsgBody selector in the reset styles also relate to older Outlook.com versions and no longer apply. So this can be safely removed as well:

.ReadMsgBody {
   width: 100%;
}

(See also this thread for a discussion on these selectors.)