HTML CSS - Font Size Oversized When Shown On Windows Phone

I'm actually creating a newsletter. When i open the email into outlook, outlook web access, the layout is exactly the same as the one i built. Yet when I open the same email in my

Solution 1:

This might have something to do with the viewport size on the device. You can try setting the initial scale to see if that resolves the issue.

<meta name="viewport" content="width=device-width; initial-scale=1.0;>