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Document inline style limitation #290

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Feb 5, 2025
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Document inline style limitation #290

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Document inline style limitation
jamesnw Jan 31, 2025
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Merge branch 'main' of https://github.com/oddbird/css-anchor-position…
jamesnw Jan 31, 2025
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16 changes: 16 additions & 0 deletions README.md
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Expand Up @@ -165,6 +165,22 @@ following features:
In addition, JS APIs like `CSSPositionTryRule` or `CSS.supports` will not be
polyfilled.

### Inline styles

Browsers provide some validation for imperatively setting inline styles.
`el.style.color = "foo"` and `el.style.foo = "bar"` do not change the inline
styles of `el`. This is problematic for this polyfill, as we would like to
support `el.style.anchorName = "--foo"`, but that won't work in browsers that
don't support the `anchor-name` property.

While `el.setAttribute('style', 'anchor-name: --foo')` or `<div
style="anchor-name: --foo" />` both work, developers are often using tools that
generate the DOM. Both React and Vue use methods that remove the unknown inline
style properties at runtime.

If you are using inline styles to set anchor-related properties and the polyfill
isn't working, verify that the inline styles are actually showing up in the DOM.

## Sponsor OddBird's OSS Work

At OddBird, we love contributing to the languages & tools developers rely on.
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