如何像它的代码一样显示熊猫滚动窗口？

<div class="panda-container"></div>

.panda-container {
  width: 300px;
  height: 300px;
  background-color: white;
  overflow: hidden;
  animation: scroll 10s infinite linear;
}

@keyframes scroll {
  0% {
    background-position: 0 0;
  }
  
  100% {
    background-position: -200px 0;
  }
}

const pandaImage = new Image();
pandaImage.src = 'panda.jpg';
pandaImage.onload = function() {
  document.querySelector('.panda-container').style.backgroundImage = `url(${pandaImage.src})`;
};