start-end-overflow-hidden-vertical-writing-mode-rl.html

<!DOCTYPE html>
<html>
<style>
    div {
        height: 100px;
        width: 100px;
    }

    div#wrapper {
        -webkit-writing-mode: vertical-lr;
        margin-left: 100px;
        margin-top: 100px;
        background-color: green;
        overflow: hidden;
    }

    div#startOverflow {
        background-color: red;
        position: relative;
        top: -100px;
    }
</style>
<body>
<a href="https://bugs.webkit.org/show_bug.cgi?id=82129">82129</a>: REGRESSION (r110065-r110080): Content drawing outside overflow: hidden at ynet.co.il</a>
<p>Your shouldn't see any red on this page, just a green square.</p>
<div id="wrapper">
    <div id="startOverflow"></div>
</div>
</body>
</html>

chromium/third_party/blink/web_tests/fast/overflow/start-end-overflow-hidden-vertical-writing-mode-rl.html