range-input-vertical-rtl-painting.html

<!DOCTYPE html>
<link rel="author" title="Tim Nguyen" href="https://github.com/nt1m">
<link rel="help" href="https://html.spec.whatwg.org/#range-state-(type=range)">
<link rel="help" href="https://drafts.csswg.org/css-writing-modes-4/#block-flow">
<title>Test that painting of input[type=range] does not happen outside of its bounds</title>
<meta charset="utf-8">
<link rel="match" href="range-input-painting-ref.html">

<style>
    #container {
        position: relative;
    }
    #cover {
        position: absolute;
        top: 0;
        left: 0;
        width: 100%;
        height: 100%;
        background-color: red;
    }
    @supports (writing-mode: vertical-lr) and (direction: rtl) {
        #cover {
            background-color: Canvas;
        }
    }
    input {
        appearance: none;
        writing-mode: vertical-lr;
        direction: rtl;
    }
</style>

<p>The range input below should be fully covered.</p>

<div id="container">
    <input type="range">
    <div id="cover"></div>
</div>

chromium/third_party/blink/web_tests/external/wpt/css/css-writing-modes/forms/range-input-vertical-rtl-painting.html