视差滚动文本在第一个滚动时跳到顶部

<div id="parallax-text">
  <p>This is the parallax scrolling text.</p>
</div>

#parallax-text {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  background-color: transparent;
  color: #fff;
  font-size: 24px;
  opacity: 0;
  transition: opacity 0.5s ease-in-out;
}

window.addEventListener('scroll', function() {
  var parallaxText = document.getElementById('parallax-text');
  if (window.pageYOffset > 0) {
    parallaxText.style.opacity = '1';
    parallaxText.style.transform = 'translateY(-100%)';
  }
});