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Test Info:

<!DOCTYPE html>
<meta charset="UTF-8">
<title>CSS Position Test: sticky element with top and bottom offsets specified with percentage unit</title>
<link rel="author" title="GĂ©rard Talbot" href="http://www.gtalbot.org/BrowserBugsSection/css21testsuite/">
<link rel="match" href="reference/position-sticky-top-and-bottom-003-ref.html">
<meta name="flags" content="">
<style>
div.scrolling-container
{
background-image: url("support/100x100-red.png");
background-repeat: no-repeat;
display: inline-block;
height: 250px;
margin-right: 30px;
overflow: auto;
position: static;
width: 150px;
}
div#first-scrolling-container
{
background-position: left 125px;
}
div#second-scrolling-container
{
background-position: left 50px;
}
div#third-scrolling-container
{
background-position: left 25px;
}
div.vertical-spacer
{
height: 200px;
}
div.sticky
{
background-color: green;
bottom: 10%;
height: 100px;
position: sticky;
top: 10%;
width: 100px;
}
</style>
<body onload="document.getElementById(&quot;first-scrolling-container&quot;).scrollTop = 50; document.getElementById(&quot;second-scrolling-container&quot;).scrollTop = 150; document.getElementById(&quot;third-scrolling-container&quot;).scrollTop = 250;">
<p>Test passes if there are 3 filled green squares and <strong>no red</strong>.
<!--
first-scrolling-container: when reaching the first (top) sticking point
-->
<div id="first-scrolling-container" class="scrolling-container"> <!-- 150w x 250h viewport -->
<div class="vertical-spacer"></div> <!-- 150w x 200h -->
<div id="first-sticky" class="sticky"></div> <!-- 100w x 100h -->
<div class="vertical-spacer"></div> <!-- 150w x 200h -->
</div>
<!--
second-scrolling-container: between both sticking points
-->
<div id="second-scrolling-container" class="scrolling-container"> <!-- 150w x 250h viewport -->
<div class="vertical-spacer"></div> <!-- 150w x 200h -->
<div id="second-sticky" class="sticky"></div> <!-- 100w x 100h -->
<div class="vertical-spacer"></div> <!-- 150w x 200h -->
</div>
<!--
third-scrolling-container: when reaching the second (bottom) sticking point
-->
<div id="third-scrolling-container" class="scrolling-container"> <!-- 150w x 250h viewport -->
<div class="vertical-spacer"></div> <!-- 150w x 200h -->
<div id="third-sticky" class="sticky"></div> <!-- 100w x 100h -->
<div class="vertical-spacer"></div> <!-- 150w x 200h -->
</div>