gap in Outlook Classic
Not supported gap is not supported in Outlook Classic.
Works in 7 of 21 · partial in 9 · not supported in 5
Which clients
- Works
- Apple Mail, Apple Mail iOS, Samsung Mail, Thunderbird, HEY Mail, Proton Mail, Superhuman
- Partial
- Gmail, Gmail Android, Gmail iOS, Outlook 365, Outlook (New), Outlook iOS, Outlook Android, Outlook for Mac, Fastmail
- Not supported
- Outlook Classic, Yahoo Mail, Yahoo Mail Android, Yahoo Mail iOS, AOL Mail
Your reader in Outlook Classic sees the email without gap, even if it looks right where you tested it.
The fix for Outlook Classic
Use padding or margin on child elements instead of gap
<table role="presentation" cellpadding="0"
cellspacing="0" border="0">
<tr>
<td style="padding-right: 16px;">Item 1</td>
<td style="padding-right: 16px;">Item 2</td>
<td>Item 3</td>
</tr>
</table>Show the original
<div style="display: flex; gap: 16px;">
<div>Item 1</div>
<div>Item 2</div>
<div>Item 3</div>
</div>The checker needs a computer screen.
A free account opens all 21 clients and keeps your checks for 7 days. Create a free account →
What Outlook Classic does with gap
@emailens/engine 0.18.22 on the original code
Outlook Classic does not support "gap".
Your next question
- Does word-break work in Outlook Classic?
Works in 4 of 21 · partial in 12 · not supported in 5
fix - Does display:flex work in Outlook Classic?
Works in 18 of 21 · partial in 2 · not supported in 1
fix - Does display:grid work in Outlook Classic?
Works in 18 of 21 · partial in 2 · not supported in 1
fix - Does border-spacing work in Outlook Classic?
Works in 17 of 21 · not supported in 2 · 2 untested
fix - Does border-radius work in Outlook Classic?
Works in 16 of 21 · partial in 4 · not supported in 1
fix - Does visibility work in Outlook Classic?
Works in 13 of 21 · not supported in 8
fix
Questions
- How many email clients support gap?
- It works in 7 of 21, partial in 9, not supported in 5.
- What do I use instead of gap in Outlook Classic?
- Use padding or margin on child elements instead of gap.
- Does gap work in AOL Mail?
- gap is not 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.
No signup · Five clients free, Outlook Classic included · All 21 with an account
The checker needs a computer screen.
caniemail (MIT) via @emailens/engine 0.18.22 · tested upstream 28 Dec 2022 · data last changed 10 Nov 2026 · Outlook (New) cells are the engine's mapping