servo/tests/wpt/web-platform-tests/css/css-position/position-sticky-left.html

103 lines
2.4 KiB
HTML

<!DOCTYPE html>
<title>position:sticky elements should respect the left constraint</title>
<link rel="match" href="position-sticky-left-ref.html" />
<link rel="help" href="https://www.w3.org/TR/css-position-3/#sticky-pos" />
<meta name="assert" content="This test checks that position:sticky elements obey their left anchor after scrolling" />
<style>
.group {
position: relative;
width: 250px;
height: 150px;
}
.scroller {
position: relative;
width: 200px;
height: 100px;
overflow-x: auto;
overflow-y: hidden;
}
.contents {
height: 100%;
width: 500px;
}
.prepadding {
display: inline-block;
height: 100%;
width: 100px;
}
.container {
display: inline-block;
height: 100%;
width: 200px;
}
.innerpadding {
display: inline-block;
height: 100%;
width: 50px;
}
.indicator {
background-color: red;
position: absolute;
top: 0;
}
.sticky {
background-color: green;
position: sticky;
left: 50px;
}
.box {
display: inline-block;
height: 100%;
width: 100px;
}
</style>
<script>
window.addEventListener('load', function() {
document.getElementById('scroller1').scrollLeft = 50;
document.getElementById('scroller2').scrollLeft = 125;
document.getElementById('scroller3').scrollLeft = 200;
});
</script>
<div class="group">
<div id="scroller1" class="scroller">
<div class="indicator box" style="left: 150px;"></div>
<div class="contents">
<!-- As these elements are inline, they are whitespace sensitive. -->
<div class="prepadding"></div><div class="container"><div class="innerpadding"></div><div class="sticky box"></div></div>
</div>
</div>
</div>
<div class="group">
<div id="scroller2" class="scroller">
<div class="indicator box" style="left: 175px;"></div>
<div class="contents">
<!-- As these elements are inline, they are whitespace sensitive. -->
<div class="prepadding"></div><div class="container"><div class="innerpadding"></div><div class="sticky box"></div></div>
</div>
</div>
</div>
<div class="group">
<div id="scroller3" class="scroller">
<div class="indicator box" style="left: 200px;"></div>
<div class="contents">
<!-- As these elements are inline, they are whitespace sensitive. -->
<div class="prepadding"></div><div class="container"><div class="innerpadding"></div><div class="sticky box"></div></div>
</div>
</div>
</div>
<div>You should see three green boxes above. No red should be visible.</div>