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Remove mentions of :host-context

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Serhii Kulykov 2021-05-17 14:19:19 +03:00 • committed by GitHub
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8-web-components/6-shadow-dom-style/article.md
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@ -111,22 +111,7 @@ customElements.define('custom-dialog', class extends HTMLElement {
Now the additional centering styles are only applied to the first dialog: `<custom-dialog centered>`.
## :host-context(selector)
Same as `:host`, but applied only if the shadow host or any of its ancestors in the outer document matches the `selector`.
E.g. `:host-context(.dark-theme)` matches only if there's `dark-theme` class on `<custom-dialog>` on anywhere above it:
```html
<body class="dark-theme">
<!--
:host-context(.dark-theme) applies to custom-dialogs inside .dark-theme
-->
<custom-dialog>...</custom-dialog>
</body>
```
To summarize, we can use `:host`-family of selectors to style the main element of the component, depending on the context. These styles (unless `!important`) can be overridden by the document.
To summarize, we can use `:host`-family of selectors to style the main element of the component. These styles (unless `!important`) can be overridden by the document.
## Styling slotted content
@ -317,7 +302,7 @@ Shadow DOM can include styles, such as `<style>` or `<link rel="stylesheet">`.
Local styles can affect:
- shadow tree,
- shadow host with `:host`-family pseudoclasses,
- shadow host with `:host` and `:host()` pseudoclasses,
- slotted elements (coming from light DOM), `::slotted(selector)` allows to select slotted elements themselves, but not their children.
Document styles can affect: