Fix background animation from forcing page height.

index.spa_one.scss

// File name is just example. The last two lines stop lottie background animation from creating vertical space. To be included in any relevant scss build styles.

#bm-mobile,
#bm-desktop {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  max-height: 100%;
  overflow-y: hidden;
}