<!DOCTYPE html>
<html>
<title>View transitions: different width container should keep aspect ratio (by default)</title>
<link rel="help" href="https://drafts.csswg.org/css-view-transitions-1/">
<link rel="author" href="mailto:vmpstr@chromium.org">
<style>
.spacer {
  /* 10px - border from above and below */
  height: 6px;
}
.smallbox {
  width: 50px;
  height: 50px;
  background: blue;
}
.bigbox {
  width: 200px;
  height: 200px;
  background: blue;
}

body { background: lightpink; }
</style>

<div style="w