CSS property · data last changed 10 Nov 2026
height in email clients
Works in 16 of 21. Not supported in Yahoo Mail, Yahoo Mail Android, Yahoo Mail iOS and 1 more. Partial in Outlook Classic.
Your reader in Outlook Classic may not see height the way you wrote it, even if it looks right where you tested it.
caniemail (MIT) via @emailens/engine 0.18.22
What to do instead in Outlook Classic
- Partial. Not supported on
<body>,<span>,<div>or<p>elements.
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height is not among the 24 features we have screenshotted on real installs. The ones we have →
All 21 clients, problems first
| Client | Support |
|---|---|
| Yahoo Mail | Not supported See caveat 2 |
| Yahoo Mail Android | Not supported See caveat 2 |
| Yahoo Mail iOS | Not supported See caveat 2 |
| AOL Mail | Not supported See caveat 2 |
| Outlook Classic | Partial See caveat 1 |
Works in 16: Gmail, Gmail Android, Gmail iOS and 13 more. Show all
| Client | Support |
|---|---|
| Gmail | Works |
| Gmail Android | Works |
| Gmail iOS | Works |
| Outlook 365 | Works |
| Outlook (New) | Works |
| Outlook iOS | Works |
| Outlook Android | Works |
| Outlook for Mac | Works |
| Apple Mail | Works |
| Apple Mail iOS | Works |
| Samsung Mail | Works |
| Thunderbird | Works |
| HEY Mail | Works |
| Proton Mail | Works |
| Fastmail | Works |
| Superhuman | Works |
Caveats (2)
- 1. Outlook Classic: Partial. Not supported on
<body>,<span>,<div>or<p>elements. - 2. Yahoo Mail, Yahoo Mail Android, Yahoo Mail iOS, AOL Mail: Buggy. Replaces
heightbymin-height.
Caveats as recorded by caniemail (MIT), one entry per wording.
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