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Does CSS gap, column-gap, row-gap Work in HTML Email?

Properties for adding spacing between grid items, flex items and columns

Quick Answer

Does gap, column-gap, row-gap work in HTML email?

The CSS gap, column-gap, row-gap property is supported in Outlook (Mac / Web), Apple Mail, Samsung Email, Thunderbird, and others. It is NOT supported in Outlook (Windows), Yahoo! Mail. Always include a safe fallback for unsupported clients.

Which Email Clients Support CSS gap, column-gap, row-gap?

CSS support for gap, column-gap, row-gap across email clients

Email ClientDesktopMobile / WebNotes
Gmail~ Partial~ Partial—
Outlook (Windows)✗ No?—
Outlook (Mac / Web)✓ Yes~ Partial—
Apple Mail✓ Yes✓ Yes—
Yahoo! Mail✗ No✗ No—
Samsung Email?✓ Yes—
Thunderbird✓ Yes?—
ProtonMail✓ Yes✓ Yes—
Fastmail~ Partial?—

Notes

  • #1 Partial. Supports column-gap for flexbox.
  • #2 Partial. Supports gap and column-gap for flexbox. Supports gap for multi-column layout (i.e. in conjunction with CSS column-count property)

Frequently Asked Questions

Related CSS Properties

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gap, column-gap, row-gap.

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