servo/tests/wpt/css-tests/cssom-view-1_dev/html/ttwf-scrollintoview.htm

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<!DOCTYPE html>
<html><head>
<title>CSSOM View - 6 - scrollIntoView tests</title>
<meta charset="utf-8">
<link href="mailto:pwx.frontend@gmail.com" rel="author" title="Chris Wu">
<link href="http://www.w3.org/TR/cssom-view/#dom-element-scrollintoview" rel="help">
<meta content="dom" name="flags">
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<style type="text/css">
#phitem{height: 2000px;}
#viewitem{width:300px;height:200px;margin:0 auto;background-color: lightgreen;}
</style>
</head>
<body>
<div id="myDiv">
<div id="phitem"></div>
<div id="viewitem"></div>
</div>
<div id="log"></div>
<script>
var asytest = async_test('check scrollIntoView');
asytest.step(function(){
var viewitem = document.getElementById('viewitem');
viewitem.scrollIntoView();
assert_true(window.pageYOffset + window.innerHeight > viewitem.offsetTop, "The element isn't in the viewport")
})
asytest.done()
</script>
</body></html>