How do you add servers on counter strike

To add a server to counter strike, please try the following steps :
(1) When you start Counter Strike, click on Find Servers.
(2) Servers window will appear.
(3) Click on Favorites Tab which is located on top of the Servers window along with the other Tabs.
(4) Click on Add Server button which is located in the bottom right of the Servers window.
(5)Add Server - Servers window will appear.
(6) Enter the IP address of the server you wish to add.
Examples : tfc.valvesoftware.com,
counterstrike.speakeasy.net:27016
205.158.143.200:27016
(7) After entering the IP address, please click on the OK button.
(7.1) Then Refreshing Servers List will be displayed for a second and the server will be added to the list. (Only if you have entered a correct IP address.)