textarea-placeholder-paint-order.html

<!DOCTYPE html>
<body>
<style>
body { overflow: hidden; }

textarea {
    color: lime;
    text-indent: 1px;
    zoom: 8;
}

textarea::-webkit-input-placeholder {
    text-indent: -1px;
    font-weight: bold;
    color: red;
}
</style>
<p>The green caret in the following text box should painted over the red placeholder text.</p>
<textarea placeholder="Placeholder"></textarea>
<script>document.querySelector('textarea').focus();</script>
</body>

chromium/third_party/blink/web_tests/fast/forms/textarea/textarea-placeholder-paint-order.html