Hi team

i have three column website i want to place different colour for each column can you suggest me how i can make it using .css

Hi
You could try the technique called “faux columns” (or false columns). This link explains about it http://www.alistapart.com/articles/fauxcolumns/ and for some of the best free layouts featuring faux columns try http://webhost.bridgew.edu/etribou/layouts/index.html
Hope that helps.