skill-assessment-app/app/assets/stylesheets/core/_animations.scss

@keyframes success-fadeout {
  0% {
    max-height: 40px;
    opacity: 1;
  }

  85% {
    margin-bottom: .5rem;
    max-height: 40px;
    opacity: 0;
    padding: .5rem 0;
  }

  96% {
    margin-bottom: 0;
    max-height: 0;
    opacity: 0;
    padding: 0;
  }

  100% {
    height: 0;
    left: -10px;
    position: absolute;
    top: -10px;
    width: 0;
  }
}