I am new to bootstrap and css. I want to split whole page into 2 parts, left part looks like a sidebar which has fixed width and doesn't respond to browser window sizing.
Now I am using grid system:
.row
   .col-xs-4  //left part
       .row
       .row
       .row
       .row
   .col-xs-8  //right part
       .row
       .row
However since grid system is responsive so when I resize browser window, left part's width also changes.