The spacing (padding) tool for buttons does not accept numbers with decimal places as units

[chvillanuevap]

Describe the bug
I want to use a padding of 0.5em for a group block.

To reproduce
Steps to reproduce the behavior:

1. Add a Group core block.
2. Add theme support for custom spacing, including the "em" unit.
3. Add a spacing value with a decimal point to the Group block (i.e. 0.5em, 0.25em).
4. The value is rounded up to an integer.

Expected behavior
I can see the point of rounding up pixels, but em's should stay in the decimal value.

Editor version (please complete the following information):

• WordPress version: 5.6
• Does the website has Gutenberg plugin installed, or is it using the block editor that comes by default? Plugin
• If the Gutenberg plugin is installed, which version is it? 9.6.2

Additional context

• To report a security issue, please visit the WordPress HackerOne program: https://hackerone.com/wordpress.

[skorasaurus]

Hi,

Thanks for reporting; I'm closing this because there's a similar issue that's a little more broader in scope that's also actionable and you can follow that issue to follow its progress - #31964