How many email clients support float?

It works in 14 of 21, partial in 6, not supported in Outlook Classic.

Does float work in AOL Mail?

float is partly supported in AOL Mail. Closest to Outlook Classic: AOL Mail, which agrees on 206 of the 298 features both are tested on.

float in Outlook Classic

Not supported float is not supported in Outlook Classic.

Works in 14 of 21 · partial in 6 · not supported in 1

Which clients

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

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

What to do instead in Outlook Classic

Use table align attribute instead of CSS float

instead

12 lines

<table role="presentation" cellpadding="0"
  cellspacing="0" border="0">
  <tr>
    <td width="200" valign="top" style="padding-right: 16px;">
      <img src="photo.jpg" width="200"
        style="display: block; border: 0;" />
    </td>
    <td valign="top">
      <p>Text next to the image.</p>
    </td>
  </tr>
</table>

Show the original

before

3 lines

<img src="photo.jpg" style="float: left;
  margin-right: 16px;" width="200" />
<p>Text wraps around the image.</p>

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What Outlook Classic does with float

The Emailens probe for float on 3 real installs counted as Outlook Classic, captured 14 Oct 2026. It shows the problem, not the fix. Where float is supported it shows: two boxes side by side.

The Emailens probe for float on a real Outlook 2019 (Windows) — Outlook Classic

The Emailens probe for float on a real Outlook 2016 (Windows) — Outlook Classic

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@emailens/engine 0.18.22 on the original code

Outlook Classic drops this float. The MSO branch needs a table with align.

caniemail record, tested upstream 8 May 2024

Not supported. table and img elements can use an align attribute to get a similar effect.

Your next question

Every feature in Outlook Classic · float in every client

Questions

How many email clients support float?: It works in 14 of 21, partial in 6, not supported in Outlook Classic.
What do I use instead of float in Outlook Classic?: Use table align attribute instead of CSS float.
Does float work in AOL Mail?: float is partly supported in AOL Mail. Closest to Outlook Classic: AOL Mail, which agrees on 206 of the 298 features both are tested on.

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

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Real captures 14 Oct 2026 on 11 installs · caniemail (MIT) via @emailens/engine 0.18.22 · tested upstream 8 May 2024 · data last changed 10 Nov 2026 · Outlook (New) cells are the engine's mapping