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How to Fix Padding & Margin Collapsing in Outlook 2013
for Klaviyo Campaigns

A programmatic integration guide for resolving email rendering crashes inside Outlook 2013 using Klaviyo's layout editor environment.

Root Bug Analysis

Outlook 2013 uses the Microsoft Word (MSO) which lacks support for standard rendering rules. This causes Padding & Margin Collapsing elements to break or collapse when rendering templates.

Active rendering engine: Microsoft Word (MSO)

Klaviyo Specific Guide

Klaviyo's delivery wrapper can clean and restructure elements during import, creating dynamic spacing differences inside Outlook 2013.

Integration Step:

Open your Klaviyo template editor. Drag an 'HTML' block directly into your layout timeline (do not use a standard text box). Clear the default skeleton content inside the Klaviyo markup editor and paste the RenderOps corrected inline code.

ESP Unsubscribe Alignment

When compiling custom HTML templates for Klaviyo, you must ensure your layout retains deliverability compliance loops. Klaviyo requires you to insert their specific unsubscribe merge tag, otherwise your campaign delivery will be flagged by automated spam audits.

Klaviyo Unsubscribe Tag:{% unsubscribe %}

Documented Client Behavior

Expected layout behavior based on target rendering engine specifications:

Documented behavior: Padding & Margin Collapsing causes elements to stack vertically or clip in Outlook 2013 when templates are sent from Klaviyo.

Interactive Klaviyo Custom Sandbox

Target Environment: Outlook 2013

Auto-compile fixes inside RenderOps Workspace

Load layout code directly into our FlightControl Workspace to compile responsive table frameworks that display cleanly in Outlook 2013.

Launch FlightControl Workspace

Fix Padding & Margin Collapsing on Other clients for Klaviyo