<!DOCTYPE html>
<html>

<style>
ins {  -webkit-user-modify: read-write-plaintext-only; padding-top: min(0.567808180561cm,0.646823110843rem,0.220603270448cm,0.306470816913cm,4%) }
</style>
<script>

function cssPrimitiveValTest() {
    if (window.testRunner)
        testRunner.dumpAsText();

    document.getSelection().collapse(x, 0);
    document.getSelection().extend(x);

    document.execCommand("insertHTML", false, "The test passes if there is no crash.");
}
</script>

<body onload=cssPrimitiveValTest()>
<ins id="x"></ins>

</body>
</html>