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Does CSS list-style-image Work in HTML Email?
Replaces the default list item marker with a custom image.
Quick Answer
Does list-style-image work in HTML email?
The CSS list-style-image property is supported in Outlook (Mac / Web), Apple Mail, Samsung Email, Thunderbird, and others. It is NOT supported in Gmail, Outlook (Windows), Yahoo! Mail. Always include a safe fallback for unsupported clients.
Which Email Clients Support CSS list-style-image?
CSS support for list-style-image across email clients
| Email Client | Desktop | Mobile / Web | Notes |
|---|---|---|---|
| Gmail | ✗ No | ✗ No | — |
| Outlook (Windows) | ✗ No | ? | — |
| Outlook (Mac / Web) | ✓ Yes | ✗ No | — |
| Apple Mail | ✓ Yes | ✓ Yes | — |
| Yahoo! Mail | ✗ No | ✗ No | — |
| Samsung Email | ? | ✓ Yes | — |
| Thunderbird | ✓ Yes | ? | — |
| ProtonMail | ✗ No | ✓ Yes | — |
| Fastmail | ✓ Yes | ? | — |
Notes
- #1 Not supported, but the proprietary `mso-bullet-image` property can be used instead on `<li>`. Outlook 2007 and 2010 only support `.ico` and `.gif` file formats.
- #2 Not supported, but image values are supported through the `list-style` shorthand property.
- #3 `url()` is transformed into `proton-url()`.
Frequently Asked Questions
Related CSS Properties
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Paste your HTML and see how it renders in clients that don't support list-style-image.
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