Does CSS text-emphasis Work in HTML Email?
Applies emphasis marks to text commonly used in East Asian languages. Tests with text-emphasis, text-emphasis-color & text-emphasis-style properties.
Does text-emphasis work in HTML email?
The CSS text-emphasis property is supported in Gmail, Outlook (Mac / Web), Apple Mail, ProtonMail. It is NOT supported in Outlook (Windows), Yahoo! Mail. Always include a safe fallback for unsupported clients.
Which Email Clients Support CSS text-emphasis?
CSS support for text-emphasis 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 | ? | ? | — |
| ProtonMail | ✓ Yes | ✓ Yes | — |
| Fastmail | ? | ? | — |
Frequently Asked Questions
Related CSS Properties
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Paste your HTML and see how it renders in clients that don't support text-emphasis.
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