I have recently noticed a space below an image in Hotmail, under my main banner (it was not there 3 months ago - apparently something changed since that time) - it is not in Yahoo, Gmail or Outlook 2013, but it is Hotmail.

I have already used the following style for that image:

style="margin: 0px; padding: 0px; outline: 0px; border: 0px currentColor; border-image: none; width: 100%; height: auto; display: block; -ms-interpolation-mode: bicubic; max-width: 100%;"

Unfortunately, the above does not work for Hotmail. Would you have any other suggestions?