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position in Superhuman

Partial position is partly supported in Superhuman.

Supports relative and absolute but not fixed and sticky.

Works in 2 of 21 · partial in 14 · not supported in 5

Which clients
Works
Thunderbird, Proton Mail
Partial
Outlook 365, Outlook (New), Outlook Android, Outlook for Mac, Apple Mail, Apple Mail iOS, Yahoo Mail, Yahoo Mail Android, Yahoo Mail iOS, Samsung Mail, HEY Mail, AOL Mail, Fastmail, Superhuman
Not supported
Gmail, Gmail Android, Gmail iOS, Outlook Classic, Outlook iOS

Your reader in Superhuman may not see position the way you wrote it, even if it looks right where you tested it.

What to do instead in Superhuman

Use table-based positioning instead of CSS position

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

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What Superhuman does with position

caniemail record, tested upstream 16 May 2021

  • Partial. Supports relative and absolute but not fixed and sticky.

Your next question

Every feature in Superhuman · position in every client

Questions

How many email clients support position?
It works in 2 of 21, partial in 14, not supported in 5.
What do I use instead of position in Superhuman?
Use table-based positioning instead of CSS position.

To see what else in your email Superhuman does not support, paste the whole email.

The checker needs a computer screen.

caniemail (MIT) via @emailens/engine 0.18.22 · tested upstream 16 May 2021 · data last changed 10 Nov 2026 · Outlook (New) cells are the engine's mapping