6 wide Entity Card and 6 wide Entities card push cards below away

[mrvanes]

Checklist

• I have updated to the latest available Home Assistant version.
• I have cleared the cache of my browser.
• I have tried a different browser to see if it is related to my browser.
• I have tried reproducing the issue in safe mode to rule out problems with unsupported custom resources.

Describe the issue you are experiencing

Since the upgrade to 2026.1 I have two cards (a 6 wide entity and a 6 wide 2x enties card) that together take 1.5 row of space, effectively pushing the next row of cards a row down, leaving a narrow but noticable extra space below the two.

Describe the behavior you expected

In previous versions these cards lived happily together without pushing the rows below down

Steps to reproduce the issue

1. Create an Entity card, 6 wide
2. Besides create an Entities card with 2 entities, 6 wide
3. Create a card below
4. See the last card being pushed down instead of connecting the above two cards

What version of Home Assistant Core has the issue?

2026.1.0

What was the last working version of Home Assistant Core?

2025.12.0

In which browser are you experiencing the issue?

Google Chrome Version 143.0.7499.192 (Official Build) (64-bit)

Which operating system are you using to run this browser?

Linux/Ubuntu

State of relevant entities

Problem-relevant frontend configuration

JavaScript errors shown in your browser console/inspector

Additional information

This is video showing the problem and the behaviour of the cards when moving them around
https://github.com/user-attachments/assets/2c20dc47-e8f3-4a09-90bc-15f912b29e25