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Does CSS :checked Work in HTML Email?
Styles a checkbox, radio, or option element when it is in a checked state.
Quick Answer
Does :checked work in HTML email?
The CSS :checked property is supported in Outlook (Mac / Web), Apple Mail, Yahoo! Mail, Samsung Email, and others. It is NOT supported in Gmail, Outlook (Windows), ProtonMail. Always include a safe fallback for unsupported clients.
Which Email Clients Support CSS :checked?
CSS support for :checked across email clients
| Email Client | Desktop | Mobile / Web | Notes |
|---|---|---|---|
| Gmail | ✗ No | ✗ No | — |
| Outlook (Windows) | ✗ No | ? | — |
| Outlook (Mac / Web) | ✓ Yes | ~ Partial | — |
| Apple Mail | ✓ Yes | ✓ Yes | — |
| Yahoo! Mail | ✓ Yes | ✓ Yes | — |
| Samsung Email | ? | ✓ Yes | — |
| Thunderbird | ✓ Yes | ? | — |
| ProtonMail | ✗ No | ✗ No | — |
| Fastmail | ✓ Yes | ? | — |
Notes
- #1 Partial. Only supported on type selectors.
- #2 Not supported. `<input>` elements are transformed into `<noinput>`.
Frequently Asked Questions
Related CSS Properties
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