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Does CSS cm unit Work in HTML Email?
Support for centimeters unit
Quick Answer
Does cm unit work in HTML email?
The CSS cm unit property is supported in all major email clients tested. You can use it with confidence in your HTML emails.
Which Email Clients Support CSS cm unit?
CSS support for cm unit across email clients
| Email Client | Desktop | Mobile / Web | Notes |
|---|---|---|---|
| Gmail | ✓ Yes | ✓ Yes | — |
| Outlook (Windows) | ✓ Yes | ? | — |
| Outlook (Mac / Web) | ✓ Yes | ✓ Yes | — |
| Apple Mail | ✓ Yes | ✓ Yes | — |
| Yahoo! Mail | ✓ Yes | ✓ Yes | — |
| Samsung Email | ? | ✓ Yes | — |
| Thunderbird | ✓ Yes | ? | — |
| ProtonMail | ✓ Yes | ✓ Yes | — |
| Fastmail | ✓ Yes | ? | — |
Frequently Asked Questions
Related CSS Properties
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Paste your HTML and see how it renders in clients that don't support cm unit.