.pong__link {
  &::before {
    content: '●';
    position: absolute;
    transition: opacity 0.25s;
  }
}

.pong__link--active {
  &::before {
    opacity: 0;
  }
}

.pong__main {
  scroll-behavior: smooth;
  scroll-snap-type: x mandatory;
}

.pong__item {
  scroll-snap-align: center;
}

.pong__image img {
  transition: border-radius 0.25s;
}