How to use Google fonts

Hi, I am using financial business but I can not understand how to use the Google font "Radley", for titles, menus, and articles. etc..

I added (body and header) Font url: http://fonts.googleapis.com/css?family=Radley
Font family: 'Radley', serif

but not work..

Thank you.

Hi, quick tip (click on picture to see all) how to use Google Font

fonts.png

If you want to use this font for selected elements you have to check which HTML it using.

Thanks for the reply. The problem is that I do not understand what I have to use HTML.

I have Firebug, but I do not know what to put in "Headers selector" or "" Body Selector".

Then the editor of joomla I have to select" font family? "That is the default, because it takes the google font?

Thanks.