replaced-element-implicit-size.html

<!DOCTYPE html>
<div style="background-color: red; position: absolute; left: 10px; right: 10px; top: 10px; bottom: 10px;">
    <iframe style="border: none; background-color: green; width: 100%; height: 100%;"></iframe>
</div>

chromium/third_party/blink/web_tests/fast/css/replaced-element-implicit-size.html