Width is not calculated correctly for the resize buttons

[jkevingutierrez]

Found a bug? Please fill out the sections below. 👍

Issue Summary

The sizes defined here are not being applied correctly. The width is always 2px smaller than the real value

Steps to Reproduce

1. Set up Django Pattern Library
2. Click on the resize buttons
3. See how the width is always 2px smaller than the real value

For example, when I click the S button it should resize to 320px but it is really resizing to 318px

Same for other sizes:

Technical details

• Python version: 3.9.13
• Django version: 3.2.18
• Browser version: Chrome 114