You have to put the full and final module name, that's why !$css.
You can also provide the module value. CSS modules have no
module value, that's why you just write null.
You could use this to add jQuery if it was already on the page like:
<script src='jquery.js></script>
<script>
steal = {instantiated: {jquery: jQuery} }
</script>
<script src='../steal/steal.js'></script>