elative;
  left: 0.4px;
}
html::view-transition-group(*) { animation-duration: 300s; }
html::view-transition-new(*) { animation: unset; opacity: 1; }
html::view-transition-old(*) { animation: unset; opacity: 0; }
html::view-transition-group(root) { animation: unset; opacity: 0; }
html::view-transition { background: lightpink; }
</style>
<div class="box" style="view-transition-name: one"></div>
<div class="box shift" style="view-transition-name: two"></div>
<script>
failIfNot(document.startViewTransition, "M