It is required to change the balun panel. Namely add border-radius, margin, padding.

The ballonLayout property is ignored when balloonPanelMaxMapArea: Infinity . How can I set a custom view of the balun panel?

https://tech.yandex.com/maps/jsbox/2.1/balloon_autopan - this example does not help, since the usual balun is generated at the marker position.

I saw such a solution, but it looks a bit crutch. Custom balun for a card

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    Balun-panel cannot be customized as it is, create a custom panel, as in this example - Reni
  • @Reni thanks. Apparently it is necessary - Constantine

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