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Does CSS visibility Work in HTML Email?
Tested for values `hidden` and `collapse`.
Quick Answer
Does visibility work in HTML email?
The CSS visibility property is supported in Outlook (Mac / Web), Apple Mail, Yahoo! Mail, Samsung Email, and others. It is NOT supported in Gmail, Outlook (Windows). Always include a safe fallback for unsupported clients.
Which Email Clients Support CSS visibility?
CSS support for visibility across email clients
| Email Client | Desktop | Mobile / Web | Notes |
|---|---|---|---|
| Gmail | ✗ No | ✗ No | — |
| Outlook (Windows) | ✗ No | ? | — |
| Outlook (Mac / Web) | ✓ Yes | ✓ Yes | — |
| Apple Mail | ✓ Yes | ✓ Yes | — |
| Yahoo! Mail | ✓ Yes | ✓ Yes | — |
| Samsung Email | ? | ✓ Yes | — |
| Thunderbird | ✓ Yes | ? | — |
| ProtonMail | ✓ Yes | ✓ Yes | — |
| Fastmail | ✓ Yes | ? | — |
Notes
- #1 Buggy. `visibility:collapse` applied to a `<tr>` only hides content and does not "remove" it from layout.
- #2 Partially supported. `visibility:collapse` is not supported.
Frequently Asked Questions
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