.playable-arena {
  position: relative;
  display: grid;
  place-items: center;
  min-width: 0;
  min-height: 0;
  overflow: hidden;
  border: 1px solid rgba(64, 85, 117, .58);
  border-radius: 8px;
  background: var(--sx-color-arena, #080d17);
  isolation: isolate;
  container-type: size;
}

.playable-arena canvas {
  width: min(100cqw, 168.421cqh);
  height: auto;
  max-width: 100%;
  max-height: 100%;
}

.playable-arena canvas { display:block; aspect-ratio:1280 / 760; object-fit:contain; }