CSS property · data last changed 10 Nov 2026

position in email clients

Works in 2 of 21. Not supported in Gmail, Gmail Android, Gmail iOS and 2 more. Partial in Outlook 365, Outlook (New), Outlook Android and 11 more.

Your reader in Outlook Classic sees the email without position, even if it looks right where you tested it.

caniemail (MIT) via @emailens/engine 0.18.22

The fix for Outlook Classic

Use table-based positioning instead of CSS position

after

7 lines

<table role="presentation" width="100%" cellpadding="0"
  cellspacing="0" border="0">
  <tr>
    <td valign="top">Content</td>
    <td width="80" valign="top" align="right">Badge</td>
  </tr>
</table>

Show the original

before

6 lines

<div style="position: relative;">
  <div style="position: absolute; top: 0; right: 0;">
    Badge
  </div>
  <p>Content</p>
</div>

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position is not among the 24 features we have screenshotted on real installs. The ones we have →

All 21 clients, problems first

Client	Support
Gmail	Not supported
Gmail Android	Not supported
Gmail iOS	Not supported
Outlook Classic	Not supported
Outlook iOS	Not supported
Outlook 365	Partial ^{See caveat 1}
Outlook (New)	Partial ^{See caveat 1}
Outlook Android	Partial ^{See caveat 1}
Outlook for Mac	Partial ^{See caveat 1}
Apple Mail	Partial ^{See caveat 2}
Apple Mail iOS	Partial ^{See caveat 2}
Yahoo Mail	Partial ^{See caveat 3}
Yahoo Mail Android	Partial ^{See caveat 3}
Yahoo Mail iOS	Partial ^{See caveat 3}
Samsung Mail	Partial ^{See caveat 2}
HEY Mail	Partial ^{See caveat 4}
AOL Mail	Partial ^{See caveat 3}
Fastmail	Partial ^{See caveat 5}
Superhuman	Partial ^{See caveat 6}
Thunderbird	Works
Proton Mail	Works

Caveats (6)

1. Outlook 365, Outlook (New), Outlook Android, Outlook for Mac: Partial. Supports sticky but not relative, absolute and fixed.
2. Apple Mail, Apple Mail iOS, Samsung Mail: Partial. Supports relative, absolute but not sticky and fixed.
3. Yahoo Mail, Yahoo Mail Android, Yahoo Mail iOS, AOL Mail: Partial. Supports relative but not absolute, sticky and fixed.
4. HEY Mail: Partial. Supports relative and sticky but not absolute and fixed.
5. Fastmail: Partial. Supports relative, absolute but not sticky and fixed. Buggy. fixed is replaced by absolute.
6. Superhuman: Partial. Supports relative and absolute but not fixed and sticky.

Caveats as recorded by caniemail (MIT), one entry per wording.

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position in Outlook Classic · Every feature in Outlook Classic · All email CSS features · What real installs show

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