You can style the “loop item” using the Combo Blocks plugin. This article will show you how to style Loop Items.
Click on the “Loop Item” tab.
Here, you can customize “Text Color,” “Background Color,” “Padding,” “Border,” “Box Shadow,” and “Typography.” Ex. I’m customizing the text color, background color, padding, and typography.
Using this method, you can style your post grid “Loop Item.”