.spark {
  inset: auto;
  left: 50%;
  top: 50%;
  width: min(48%, 19rem);
  aspect-ratio: 1;
  transform: translate(-50%, -50%);
  display: grid;
  place-items: center;
  background: #0783c5;
  box-shadow: 0 0 0 7px rgba(255, 255, 255, .07), 0 0 80px rgba(26, 113, 255, .48);
  overflow: hidden;
}

.spark img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  border-radius: 50%;
}

@media (max-width: 560px) {
  .spark { width: min(50%, 12rem); }
}