Creates the shared styles for a popover element that is positioned with CSS anchor positioning
and opened through PopoverManager. Put the popover's default position (such as position-area)
in a rule after these styles. fallbacks are tried in order whenever the default position
overflows the viewport.
Creates the shared styles for a
popoverelement that is positioned with CSS anchor positioning and opened throughPopoverManager. Put the popover's default position (such asposition-area) in a rule after these styles.fallbacksare tried in order whenever the default position overflows the viewport.