Style changes(,css) in asp.net mvc3 razor application

Main ly I have faced a problem when i changed some thing in to the .css file for look and field and run the program ,My style changes are nor displaying in to the project.I run the application in to the I.E 7.I got suprised.I changed again but till the new changes are not displaying.So i fot furstated and shutdown my system.Next day when i run my project My changed style are displaying.So i got under stand that the temporary I.E file Have to be deleted,then it will display your changes.
So from now After changing some style in to the .css file i first run "ccCleaner".It will delete all the temporary files.
And my new style changes will effect.
I have to test in to the Mozilla and also opera browser also.