Google Maps Plugin - styling / positioning of the map is not working

Hi,

I believe I have done the (CSS) configuration right and also the Plugin configuration correctly for the Google Maps plugin.

However, I cannot "get rid" of the "float: left" styling that is stopping the map from centering on my display block.

Refere to this screenshot of my setting & configuration of the plugin. http://www.screencast.com/t/9mc46QX0Wa

This is the trace of the rendered page and what the page (currently) looks like:
http://www.screencast.com/t/6FOQqQh4O48z
http://www.screencast.com/t/RB9BceqE

This is the trace of the rendered page and what I'd like the map to look like on the web site. Note that if I unticked the "float: left" element, it behaves as it should . But I thought that the setting for the map to be aligned "center" and also the overriding CSS should have done the job. What's missing?
http://www.screencast.com/t/F6vqsqjB38C
http://www.screencast.com/t/IeBQbnLc

Please help me resolve this formatting issue.

Thanks!

Regards,
Elina