In email templates, should font-size be in pt or px?

css, email, font-size, html

Solution

(Excerpt: Paul Dyke - http://www.adestra.com/what-need-know-using-fonts-in-email/)

em doesn’t work with fonts in email as email clients have different default sizes.

% is another scalable font unit, similar to em except 100% will always equal the default size.

pt is sometimes used. One point is equal to 1/72 of an inch. But why use a unit that is a throwback to the printing industry?

In my opinion, pixels are the best option. Email designs are often pixel perfect – lots of sliced images in different table cells that have to appear seamless. Having your text behave in a similar way makes sense.

And it's also my opinion

Problem

I am creating an email template, the specs that I am working to have the measurements in MS word font size. Being a print medium, this is in `pt`. However email is a screen based medium (https://stackoverflow.com/a/3557275/989852). Should the font-sizes (and all other dimensions for that matter) in an email template be specified in `pt` or `px`?

Original source

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