How to fix logo image size?

Hi,

I prefer a logo image fix size on page whatever browser width. How to modify css code?

Thanks

goodtognci
Hi
The logo image width is depend on the container size.
Open tpls/blocks/header.php file
and change the size of column http://prntscr.com/oux7bz
Change color xs value to col-xs-6
Here : http://prntscr.com/oux7oa

Regards