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<!DOCTYPE html>
<title>Sticky elements inside fixed ancestors and iframe shouldn't account for scroll</title>
<style>
body,html {
margin: 0;
width: 100%;
height: 100%;
}
iframe {
margin: 10px;
width: 90%;
height: 90%;
border: 1px solid black;
}
.spacer {
height: 120vh;
}
</style>
<div class="spacer"></div>
<iframe srcdoc="
<!DOCTYPE html>
<title>Reference for sticky elements inside fixed ancestors shouldn't account for scroll</title>
<style>
body,html {
margin: 0;
width: 100%;
height: 100%;
}
.sticky {
background: green;
width: 100px;
height: 10%;
}
.spacer {
height: calc(25vh - 10%);
}
.long {
height: 600vh;
}
.position-parent {
position: absolute;
display: flex;
align-items: center;
justify-content: center;
width: 100%;
height: 100%;
top: 100vh;
background-color: lightgrey;
}
.container {
width: 100px;
height: 100%;
background-color: grey;
}
button {
position: fixed;
left: 20px;
top: 20px;
}
.fixed {
position: fixed;
top: 25vh;
}
</style>
<div class='position-parent fixed'>
<div class='container'>
<div class='spacer'></div>
<div class='sticky'></div>
</div>
</div>
<div class='long'></div>
<button id='button'>Toggle Fixed</button>
<script>
window.scrollTo(0, document.querySelector('.long').clientHeight);
</script>
"></iframe>
<div class="spacer"></div>
<script>
const child = document.querySelector('iframe');
child.scrollIntoView();
</script>
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