customizr child them, css will not work

Hello,

I am using the customizr theme as a child theme. I am trying to center and enlarge my logo and have my menu under it. I’ve entered the following in the custom css box as well as the style.css file. Neither seems to work.

.navbar-wrapper .brand {width:100%; float:center;}
.navbar-wrapper .navbar {width:99%; float:center;}

Website is here

I am building this site for my boss as our old one is extremely outdated.

Any help would be greatly appreciated.

Thank you