.slide-right {
  width: 100%;
  overflow: hidden;
  margin-left: 400px;
  max-width: 500px
}

.slide-right h2 {
  animation: 2s slide-right;
  animation-delay: 2s;
}

@keyframes slide-right {
  from {
    margin-left: -500px;
  }

  to {
    margin-left: 0%;
  }
}

// Web Animation API Keyframes options
var options = {
  iterations: Infinity,
  iterationStart: 0,
  delay: 0,
  endDelay: 0,
  direction: 'alternate',
  duration: 700,
  fill: 'forwards',
  easing: 'ease-out',
}
element.animate(keyframes, options);

The generation of repeated renderings of a scene quickly enough, with smoothly changing viewpoint or object positions, that the illusion of motion is achieved. OpenGL animation almost always uses double-buffering.