how to divide a row into 4 columns in bootstrap code example

Example 1: bootstrap grid

  

    

      One of three columns
    
    

      One of three columns
    
    

      One of three columns
    
  

Example 2: col-md-6 bootstrap

 Your Stuffs 

/*
col-lg  for large

col-md for med 

col-sm for small 

enjoy :) 
*/