testing/web-platform/tests/intersection-observer/observer-in-iframe.html


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<!DOCTYPE html>
<meta name="viewport" content="width=device-width,initial-scale=1">
<style>
pre, #log {
  position: absolute;
  top: 0;
  left: 200px;
}
</style>
<iframe id="target-iframe" src="resources/observer-in-iframe-subframe.html" width="150px" height="150px"></iframe>