How many email clients support @media?

It works in 5 of 21, partial in 14, not supported in Outlook Classic and Thunderbird.

Does @media work in Apple Mail?

@media works in Apple Mail. Closest to Apple Mail iOS: Apple Mail, which agrees on 284 of the 298 features both are tested on.

@media in Apple Mail iOS

Works @media works in Apple Mail iOS.

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

Which clients

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

The fix for the clients that need it

Needed in 16 of 21: Outlook Classic, Thunderbird, Gmail and 13 more.

Design mobile-first for clients without media query support

instead

11 lines

<!-- Single-column layout that works without @media -->
<table role="presentation" width="100%"
  style="max-width: 600px;" cellpadding="0"
  cellspacing="0" border="0">
  <tr>
    <td style="padding: 16px;">Left Column</td>
  </tr>
  <tr>
    <td style="padding: 16px;">Right Column</td>
  </tr>
</table>

Show the original

before

12 lines

<table width="800">
  <tr>
    <td width="400">Left Column</td>
    <td width="400">Right Column</td>
  </tr>
</table>
<style>
  @media (max-width: 600px) {
    table { width: 100% !important; }
    td { display: block !important; width: 100% !important; }
  }
</style>

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Your next question

Every feature in Apple Mail iOS · @media in every client

Questions

How many email clients support @media?: It works in 5 of 21, partial in 14, not supported in Outlook Classic and Thunderbird.
Does @media work in Apple Mail?: @media works in Apple Mail. Closest to Apple Mail iOS: Apple Mail, which agrees on 284 of the 298 features both are tested on.

To see what in your email Apple Mail iOS does not support, paste the whole email.

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