Add white space between blocks and customize its height for each device.
As of April 2026, Flexible Spacer Block is a WordPress block plugin with 4.0K+ active installations and a 5/5 rating from 8 reviews. It has been downloaded 39K+ times in total. Requires WordPress 6.9+ and PHP 8.0+. Available on WordPress.org since 2021. Recently updated within the last 3 months. Download volume is stable this week. Top alternative: Spectra Gutenberg Blocks – Website….
Flexible Spacer Block switches the height of the spacer according to the device screen width (breakpoints).
This block has two variable breakpoints, and you can adjust the height of the spacer for smartphones, tablets, and desktops respectively.
The height of the spacers can be changed individually or in batches.
Also available to set “negative space (negative margin)” instead of the normal space.
And this block supports transform from and to core spacer block.
“Negative space” narrows the margins both blocks above and below the spacer, and it is also possible to overlap the blocks.
If unintended overlap occurs, add a CSS class named “fsb-style-show-front” to the block you want to show in the front.
To apply the CSS class to the blo…
It can set margins for each screen width that cannot be set with the default block. It also supports negative margins. Easy to use.
I wish more people would release single, useful blocks like this instead of all those copy cat collections. Who really needs 5 accordion blocks?
Only other thing I’d like to see in this is a way to set default initial heights like 75px desktop | 50px tablet | 25px phone etc.
I was actually looking for a way to set a default height for the core spacer block when I stumbled on this.
マイナススペースは、スペーサーの上下にあるブロックの余白を狭くし、ブロックを重ねることも可能
Thank you very much for creating this awesome plugin. Love the plugin’s simplicity and ease of use!
I use this plugin on every site I build! An easy drop-in replacement for the spacer block.
| WordPress | 6.9+ requiredTested up to 7.0 |
| PHP | 8.0+ required |
Plugin data sourced from WordPress.org. Analysis and metrics by PluginSift.