CSS property · data last changed 10 Nov 2026
transform in email clients
Works in 7 of 21. Not supported in Gmail, Gmail Android, Gmail iOS and 10 more. Partial in Superhuman.
Your reader in Outlook Classic sees the email without transform, even if it looks right where you tested it.
caniemail (MIT) via @emailens/engine 0.18.22
The fix for Outlook Classic
Pre-render transformed states as images or use table layout
The engine still flags this in the fix: An image points to an address no inbox can load (rotated-content.png), so Outlook Classic shows a broken image instead.
<!-- Pre-render rotated content as an image -->
<img src="rotated-content.png" width="200" height="200"
alt="Rotated content"
style="display: block; border: 0;" />Show the original
<div style="transform: rotate(45deg);">
Rotated content
</div>The checker needs a computer screen.
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transform is not among the 24 features we have screenshotted on real installs. The ones we have →
All 21 clients, problems first
| Client | Support |
|---|---|
| Gmail | Not supported |
| Gmail Android | Not supported |
| Gmail iOS | Not supported |
| Outlook 365 | Not supported |
| Outlook (New) | Not supported |
| Outlook Classic | Not supported |
| Outlook iOS | Not supported |
| Outlook Android | Not supported |
| Outlook for Mac | Not supported |
| Yahoo Mail | Not supported |
| Yahoo Mail Android | Not supported |
| Yahoo Mail iOS | Not supported |
| AOL Mail | Not supported |
| Superhuman | Partial |
Works in 7: Apple Mail, Apple Mail iOS, Samsung Mail and 4 more. Show all
| Client | Support |
|---|---|
| Apple Mail | Works |
| Apple Mail iOS | Works |
| Samsung Mail | Works |
| Thunderbird | Works |
| HEY Mail | Works |
| Proton Mail | Works |
| Fastmail | Works |
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fix
transform in Outlook Classic · Every feature in Outlook Classic · All email CSS features · What real installs show
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