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Does CSS resize Work in HTML Email?
Sets whether an element is resizable, and in which directions.
Quick Answer
Does resize work in HTML email?
The CSS resize property is supported in Samsung Email. It is NOT supported in Gmail, Outlook (Windows), Outlook (Mac / Web), and others. Always include a safe fallback for unsupported clients.
Which Email Clients Support CSS resize?
CSS support for resize across email clients
| Email Client | Desktop | Mobile / Web | Notes |
|---|---|---|---|
| Gmail | ✗ No | ✗ No | — |
| Outlook (Windows) | ✗ No | ? | — |
| Outlook (Mac / Web) | ✗ No | ✗ No | — |
| Apple Mail | ~ Partial | ✗ No | — |
| Yahoo! Mail | ✗ No | ✗ No | — |
| Samsung Email | ? | ✓ Yes | — |
| Thunderbird | ? | ? | — |
| ProtonMail | ? | ✗ No | — |
| Fastmail | ? | ? | — |
Notes
- #1 `resize` property is stripped from style tag
- #2 Does not support `inline` and `block` values
Frequently Asked Questions
Test Your Email Now
Paste your HTML and see how it renders in clients that don't support resize.