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docs(dropdowns): clarify where is .show applied (#32189)

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Fixes #32712
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Gaël Poupard 2020-11-18 11:50:55 +01:00 committed by GitHub
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site/content/docs/5.0/components/dropdowns.md
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@ -815,7 +815,7 @@ Use `data-bs-offset` or `data-bs-reference` to change the location of the dropdo
## Usage
Via data attributes or JavaScript, the dropdown plugin toggles hidden content (dropdown menus) by toggling the `.show` class on the parent list item. The `data-bs-toggle="dropdown"` attribute is relied on for closing dropdown menus at an application level, so it's a good idea to always use it.
Via data attributes or JavaScript, the dropdown plugin toggles hidden content (dropdown menus) by toggling the `.show` class on the parent `.dropdown-menu`. The `data-bs-toggle="dropdown"` attribute is relied on for closing dropdown menus at an application level, so it's a good idea to always use it.
{{< callout info >}}
On touch-enabled devices, opening a dropdown adds empty `mouseover` handlers to the immediate children of the `<body>` element. This admittedly ugly hack is necessary to work around a [quirk in iOS' event delegation](https://www.quirksmode.org/blog/archives/2014/02/mouse_event_bub.html), which would otherwise prevent a tap anywhere outside of the dropdown from triggering the code that closes the dropdown. Once the dropdown is closed, these additional empty `mouseover` handlers are removed.