Disable text resizing of HTML mail in Outlook.com

Disable text resizing of HTML mail in Outlook.com

I'm struggling to disable the automatic text/font formatting that
Outlook.com applies to HTML e-mails.
I have tried using:
-webkit-text-size-adjust:none;-ms-text-size-adjust:none;-moz-text-size-adjust:none;text-size-adjust:none;
and then, just:
-webkit-text-size-adjust:none;
as an inline style on all paragraph blocks but unfortunately it is not
being recognised by outlook.
This particular newsletter is fairly tight in terms of layout with little
solid colour or spacing to accommodate the formatting Outlook is insisting
on.
The full text block is:
<p style="font-family:arial, sans-serif; color:#FFFFFF; font-size:14px;
padding-left: 10px;padding-right:10px;
-webkit-text-size-adjust:none;-ms-text-size-adjust:none;-moz-text-size-adjust:none;text-size-adjust:none;">Hi
$$first_name$$</p>
<p style="font-family:arial, sans-serif; color:#FFFFFF;
font-size:14px; padding-left: 10px;padding-right:10px;
-webkit-text-size-adjust:none;-ms-text-size-adjust:none;-moz-text-size-adjust:none;text-size-adjust:none;">
To get your weekend off to the best possible start, we'd like to
invite you to read all your incoming messages for free this
evening.</p>
<p style="font-family:arial, sans-serif; color:#FFFFFF;
font-size:14px; padding-left: 10px;padding-right:10px;
-webkit-text-size-adjust:none;-ms-text-size-adjust:none;-moz-text-size-adjust:none;text-size-adjust:none;">Just
log in as normal between 6pm and 8pm and you'll automatically be
able to open all your mail.</p>
<table width="381" align="center"><tbody><tr>
<td align="left"><a style="text-decoration:underline;
color:#FFFFFF;" target="_blank" title="Upgrade Now" href=""><img
style="display:block;"
src="http://s.wldcdn.net/newsletters/uploads/assets/000/028/131/8c6cbc24743881ebc812970367245b16_original.png?1376643494"
alt="" /></a></td>
</tr></tbody></table>
<p style="font-family:arial, sans-serif; color:#FFFFFF;
font-size:14px; padding-left: 10px;padding-right:10px;
-webkit-text-size-adjust:none;-ms-text-size-adjust:none;-moz-text-size-adjust:none;text-size-adjust:none;">See
you later,</p>
<p style="font-family:arial, sans-serif; color:#FFFFFF;
font-size:14px; padding-left: 10px;padding-right:10px;
-webkit-text-size-adjust:none;-ms-text-size-adjust:none;-moz-text-size-adjust:none;text-size-adjust:none;">The
$$site_name$$ Team.</p>
Any help would be appreciated.