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Does CSS font-stretch Work in HTML Email?
Selecting different font widths (e.g. condensed, expanded)
Quick Answer
Does font-stretch work in HTML email?
The CSS font-stretch property is supported in Gmail, Outlook (Mac / Web), Apple Mail, Thunderbird, and others. It is NOT supported in Outlook (Windows), Yahoo! Mail. Always include a safe fallback for unsupported clients.
Which Email Clients Support CSS font-stretch?
CSS support for font-stretch across email clients
| Email Client | Desktop | Mobile / Web | Notes |
|---|---|---|---|
| Gmail | ✓ Yes | ✓ Yes | — |
| Outlook (Windows) | ✗ No | ? | — |
| Outlook (Mac / Web) | ✓ Yes | ✓ Yes | — |
| Apple Mail | ✓ Yes | ✓ Yes | — |
| Yahoo! Mail | ✗ No | ✗ No | — |
| Samsung Email | ? | ✗ No | — |
| Thunderbird | ✓ Yes | ? | — |
| ProtonMail | ✓ Yes | ✓ Yes | — |
| Fastmail | ? | ? | — |
Notes
- #1 Partial. Depends on the browser. There is currently a bug in Chrome/Edge where font-stretch does not work for variable fonts.
Frequently Asked Questions
Related CSS Properties
Test Your Email Now
Paste your HTML and see how it renders in clients that don't support font-stretch.