Optional anchor?: PositionAnchorA string indicating the part of the Popup that should
be positioned closest to the coordinate set via Popup#setLngLat.
Options are 'center', 'top', 'bottom', 'left', 'right', 'top-left',
'top-right', 'bottom-left', and 'bottom-right'. If unset the anchor will be
dynamically set to ensure the popup falls within the map container with a preference
for 'bottom'.
Optional classSpace-separated CSS class names to add to popup container
Optional closeIf true, a close button will appear in the top right corner of the popup.
true
Optional closeIf true, the popup will closed when the map is clicked.
true
Optional closeIf true, the popup will closed when the map moves.
false
Optional focusIf true, the popup will try to focus the first focusable element inside the popup.
true
Optional maxA string that sets the CSS property of the popup's maximum width, eg '300px'.
To ensure the popup resizes to fit its content, set this property to 'none'.
Available values can be found here: https://developer.mozilla.org/en-US/docs/Web/CSS/max-width
'240px'
Optional offset?: OffsetA pixel offset applied to the popup's location
Optional subpixelIf true, rounding is disabled for placement of the popup, allowing for
subpixel positioning and smoother movement when the popup is translated.
false
The Popup options object