CSS Logical Shorthands

These days, it's a common practice to use logical flow-relative properties & values like `block-size` whenever possible. But the shorthand properties feel stuck in the past. It's surprising that a `size` shorthand can't set the `inline-size`, and the `inset` shorthand doesn't include `inset-block-start`.

There are several proposals to move forward, but they've been stalled in the Working Group for several years – waiting for someone to do the necessary background research. Let's make it happen!

- A Github issue been open since 2017, to discuss the problem and potential solutions

- In 2021, Elika Etimad and Jen Simmons and I proposed a multi-step path forward, to progressively move towards logical properties as a simple default for CSS 

- Every year at TPAC, the Internationalization Working Group asks us to make progress and provide updates.

- Every year, we disappoint them.

Thanks to your contributions so far, we've already completed the first phase of this project, but there's more to do, and we could still use your help moving forward:

- [DONE] Document impacted properties and values
- Group properties and values by shared syntax
- Develop a proposal for how a physical/logical toggle would impact each syntax
- Guide that proposal through CSS Working Group discussions

Read more about it on our blog or follow along in my public notebook!