You can use the dimension settings in blocks to help you better customize your layout and design. These settings impact the dimensions of blocks in various ways, including how groups of blocks are placed alongside one another.
The dimension settings are available when you use the block editor. If you are new to the block editor, this guide will show you how to work with blocks. You can read more about the new block editor features and improvements in this article.
How to access dimension settings
The dimension settings can be found in the Block Settings sidebar of a block under the section Dimension.
If you don’t see the Block Settings sidebar, select the block you want to customize, then click the settings icon (a cog) that is to the right of the Publish or Update buttons in the WordPress Editor.
Below are a few examples from different blocks: