New here and hope this is the correct forum for this.

I am creating an html email for our company. I've done these successfully in the past just using images. This time I'm incorporating text. I have everything built, open it in Safari, select "Mail Contents of This Page" and it opens in a new Mail window. The problem is the font size is now about 30% smaller.

While this is not a disaster and I can redesign the layout so this won't really present any problems, I want to know why this is happening and how to prevent it in the future.

I initially used the <font size="3"> tag. I have also tried inline CSS with <p style="font-size:1.1em">. Both of these produce the same result. Once the file is in Mail, the font has "shrinkage."

Any ideas?