Wanderes Template Custom position for banner 02

Hi SI support

I know this is a customisation and that you guys can not help me directly with this one....
A friend has been helping me with the banner thing and he says he has tried lots of Code that is pretty much standard in the Joomla world and nothing has worked for him. He thinks there is something from the SI side that is getting in the way. Is this possible? As far as I can make out what ever he does to CENTER the banner in the middle does not work!!!

This is what he has done so far:

/**

 * Here, you can define your own custom.css file.

 * This file will never be deleted.

 */



#bruce-bottom {

  z-index: 6;

  width: 500px;

  height: 25px;

  position: fixed;

  bottom: 0;

  left: 0;

}







#bm-bann {

  z-index: 12;

  width: 650px ;

  margin: 0 auto ;

}





#bm-outer {

  z-index: 12;

  width: 650px ;

  text-align: center;

}



#bm-inner {

  display: inline-block;

}

Any tips or pointers would be greatly appreciated. I just want a banner up top/middle with some padding....
See screen shot for how it should work...

thanks

Paul