ladybird/Tests/LibWeb/Ref/scrollable-box-with-nested-stacking-context.html

<link rel="match" href="reference/scrollable-box-with-nested-stacking-context-ref.html" />
<style>
    * {
        scrollbar-width: none;
    }

    #scrollable-box {
        width: 300px;
        height: 500px;
        overflow: auto;
        position: relative;
        border: 2px solid black;
    }

    .content {
        height: 1000px;
        background-color: lightblue;
    }

    .abspos {
        position: absolute;
        bottom: 0px;
        right: 0px;
        width: 150px;
        height: 50px;
        background-color: coral;
        z-index: 1000;
        display: flex;
    }

    .box {
        background-color: magenta;
        width: 100px;
        height: 100px;
        position: relative;
        top: 0px;
        left: 0px;
    }
</style>
<div id="scrollable-box">
    <div class="content">
        Lots of scrollable content here!
        <div class="box">box</div>
    </div>
    <div class="abspos"><div class="box">box</div></div>
</div>
<script>
    const scrollContainer = document.getElementById("scrollable-box");
    scrollContainer.scrollTop = 500;
</script>