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Adam Wathan 8d00534823
Preserve shadow color when overriding shadow size (#14458)
This PR changes how shadow color and shadow size utilities interact when
used with variants.

Take this HTML:

```html
<div class="shadow-lg shadow-red-500 hover:shadow-xl">
  <!-- … -->
</div>
```

Currently this shadow would be red by default, but revert to the default
semi-transparent black color on hover.

This PR changes this behavior such that the shadow remains red on hover,
and only the shadow size changes.

We deliberately didn't do this originally because making things behave
this way makes it very difficult to get the default shadow color back
once you've changed it. The default color for `shadow-xl` for instance
is `rgb(0 0 0 / 0.1)`, and the only way to get that color back after
changing it is to know that value and explicitly bring it back:

```html
<div class="shadow-lg shadow-red-500 hover:shadow-xl hover:shadow-black/10">
  <!-- … -->
</div>
```

To make things more difficult, the default shadow color is not the same
across shadow sizes. For `shadow-sm` it's `black/5`, and for
`shadow-2xl` it's `black/25`.

In practice though you basically never need to bring back the default
shadow color, so I'm reconsidering this trade-off in v4, and think I
prefer this new behavior where the color is preserved but you have to
bring back the default color if you actually need it.

A simple workaround if you don't know the color is to reset the
`--tw-shadow-color` variable like this:

```html
<div class="shadow-lg shadow-red-500 hover:shadow-xl hover:[--tw-shadow-color:initial]">
  <!-- … -->
</div>
```

This relies on semi-private internals though, so perhaps we can
introduce a utility for this, like `shadow-default` or `shadow-initial`
that just unsets the shadow color.

---------

Co-authored-by: Adam Wathan <4323180+adamwathan@users.noreply.github.com>
2024-09-19 09:43:48 -04:00
.github Increase CI timeouts for Windows intergarion tests 2024-09-12 15:41:07 +02:00
crates Release v4.0.0-alpha.24 (#14395) 2024-09-12 16:10:56 +02:00
integrations Add CSS codemods for migrating @tailwind directives (#14411) 2024-09-18 22:40:23 +02:00
packages Preserve shadow color when overriding shadow size (#14458) 2024-09-19 09:43:48 -04:00
patches Add standalone CLI (#14270) 2024-09-02 15:23:46 +02:00
playgrounds Postcss: Bring back proper type exports (#14256) 2024-08-26 15:54:07 +02:00
scripts Add GitHub release workflow (#14346) 2024-09-05 09:45:29 -04:00
.gitattributes Add .gitattributes and define a merge strategy for changelog files 2024-08-26 16:27:41 +02:00
.gitignore Add test.debug to integration tests (#14133) 2024-08-08 12:02:19 +02:00
.npmrc introduce v4 codebase 2024-03-05 14:29:15 +01:00
.prettierignore Hoist oxide/crates to just crates (#13333) 2024-03-23 09:00:48 -04:00
Cargo.lock Improve Oxide scanner API (#14187) 2024-08-16 15:05:42 +02:00
Cargo.toml Hoist oxide/crates to just crates (#13333) 2024-03-23 09:00:48 -04:00
CHANGELOG.md Preserve shadow color when overriding shadow size (#14458) 2024-09-19 09:43:48 -04:00
LICENSE Add README, LICENSE, and CONTRIBUTING (#13088) 2024-03-05 14:45:39 -05:00
package.json Add standalone CLI (#14270) 2024-09-02 15:23:46 +02:00
pnpm-lock.yaml Add initial codemod tooling (#14434) 2024-09-18 16:45:43 +02:00
pnpm-workspace.yaml Bump dependencies (#14160) 2024-08-09 16:12:24 +02:00
README.md Copy README file to every package (#13096) 2024-03-06 08:49:31 -05:00
rust-toolchain.toml Pin rust toolchain to work around Windows regression (#14406) 2024-09-12 14:07:43 +02:00
turbo.json Fix Rust build by passing through RUSTUP_HOME variable (#14171) 2024-08-12 11:37:45 +02:00
vitest.workspace.ts introduce v4 codebase 2024-03-05 14:29:15 +01:00

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