When I add this, I get an error from The AMP Validator
:
<link href="https://fonts.googleapis.com/css?family=Roboto+Slab:400,700|Roboto:300,400,500" rel="stylesheet">
The tag 'link' is disallowed.
How should I add fonts from Google Fonts inside an amp4email
.
AMP for Email doesn't currently support custom fonts.
#21907 is the tracking issue for this feature request.