:popover-open
Baseline 2024 Newly available
Since April 2024, this feature works across the latest devices and browser versions. This feature might not work in older devices or browsers.
The :popover-open CSS pseudo-class represents a popover element (i.e., one with a popover attribute) that is in the showing state. You can use this to apply style to popover elements only when they are shown.
Syntax
css
:popover-open { /* ... */ } Examples
By default, popovers appear in the middle of the viewport. The default styling is achieved like this in the UA stylesheet:
css
[popover] { position: fixed; inset: 0; width: fit-content; height: fit-content; margin: auto; border: solid; padding: 0.25em; overflow: auto; color: CanvasText; background-color: Canvas; } To override the default styles and get the popover to appear somewhere else on your viewport, you could override the above styles with something like this:
css
:popover-open { width: 200px; height: 100px; position: absolute; inset: unset; bottom: 5px; right: 5px; margin: 0; } Specifications
| Specification |
|---|
| HTML # selector-popover-open |
| Selectors Level 4 # selectordef-popover-open |
Browser compatibility
See also
- Popover API
popoverHTML global attribute