iframe-mousewheel.html | Explore in Territory

<style>
/* We center the square so as to simplify the eventSender logic in parent.runTest(). */
#test-container { margin: 0px auto; width: 128px; height: 128px; }

#square { display: table-cell; text-align: center; vertical-align: middle; width: inherit; height: inherit; color: black; border: 1px dashed; }
</style>
</head>
<body>
<div id="test-container">
    <div id="square" onwheel="parent.iframeMouseWheel()">Mouse wheel over me.</div>
</div>

chromium/third_party/blink/web_tests/fast/events/resources/iframe-mousewheel.html