SharePoint Document Issues

How to Fix SharePoint JSON Card Height and Width Not Working

Adam Davis Sep 25, 2026 870 views

Question details

Users need to resolve an issue where SharePoint JSON card and tile formatting fails to apply configured height and width settings.

How to Fix SharePoint JSON Card Height and Width Not Working

Product: Microsoft SharePoint
Device & OS: not provided
Scenario: Customizing SharePoint list views and galleries using JSON scripts for specific card dimensions.
Observed behavior: SharePoint stops honoring the height and width settings defined in the JSON, resulting in compressed cards and hidden information.

Before you start

Verify that your JSON formatting code is syntactically correct and check if the issue occurs across multiple SharePoint lists or only in a specific view.

Solution 1Recommended

Check Microsoft 365 Service Health for Temporary Issues

Often, ignored JSON formatting dimensions are caused by backend updates in SharePoint Online and are resolved automatically by Microsoft.

If your JSON formatting was previously working and suddenly compressed the cards without any script changes, this is typically a temporary service degradation on Microsoft's end. In many reported cases, Microsoft fixes these backend compatibility bugs silently.

Contact your IT Administrator

Reach out to your organization's Microsoft 365 IT administrator to verify if there are any active SharePoint Online service advisories.

Review the Service Health Dashboard

Administrators can log into the Microsoft 365 Admin Center, navigate to 'Health', and select 'Service health' to look for ongoing SharePoint issues.

Wait for Automatic Resolution

If a known service issue is identified, wait for Microsoft to deploy a fix. The formatting usually returns to normal without requiring changes to your JSON code.

Check Microsoft 365 Service Health for Temporary Issues

Service Restorations: Users have reported that this specific JSON height and width issue was previously resolved automatically by Microsoft without any configuration changes on the user's end.

Solution 2

Test JSON Formatting in an Alternate Environment

Use this solution to isolate the problem and determine if the issue is restricted to a specific list, site, or web browser.

Solution 3

Escalate to Microsoft Support and Developer Communities

Use this approach if the issue persists long-term and you need direct technical assistance or confirmation of a wider bug.

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Frequently Asked Questions

Why did my SharePoint JSON formatting suddenly stop working?

Sudden failures in custom JSON formatting are frequently caused by temporary backend updates or service degradations in SharePoint Online. In most instances, Microsoft resolves these compatibility issues automatically without requiring users to alter their code.

How do I format card dimensions in SharePoint JSON?

You can control the dimensions of a card or tile by properly defining the 'height' and 'width' properties within the 'style' object of your JSON view formatting code.

Where can I find help for complex SharePoint JSON scripts?

For advanced troubleshooting and advice, it is highly recommended to post your questions in the Microsoft Q&A forums using the 'SharePoint Development' tag or engage with experts in the official SharePoint Developer community.

Document & File Issues