You have everything correct. I think the only thing that needs to be updated is the float:none CSS style. Change the following:
float: none;
to
float: none !important;
If looks like the float wasn’t being set. The old style was still overriding the new style I sent to you. Adding the !important attribute will make it override the old style. If this doesn’t help, let me know. Sorry for not catching this before.
Thanks,
Josh