<!DOCTYPE html>
<html>
<head>
<style>
#test-container {
    height: 50px;
    width: 50px;
    overflow: hidden;
}

#test {
    background-color: white;
    color: red;
    caret-color: green;
    transform-origin: left top;
    transform: scale(50, 50);
    font-size: 10px; /* Needed for the caret to render in Firefox. */
}

#test > span {
    background-color: inherit;
}
</style>
</head>
<body>
<p>Tests that "caret-color: auto" behaves identical to omitting property caret-color.</p>
<div id="test-container">
    <div id="test" contenteditable="true">
        <span>&nbsp;<!-- Needed for the caret to render in Firefox. --></span>
    </div>
</div>
<script>
document.getElementById("test").focus();
window.getSelection().modify("move", "left", "character"); // Place the caret at the start of the <span>.
</script>
</body>
</html>