Use Google Fonts in CSS

Use Google Fonts in your themes and plugins CSS.

Just type your CSS as usual.

Make sure to add the font exactly the same way it is written under "Manage Fonts".

For example:

If you added the font Annie Use Your Telescope in your TK Google Fonts Admin Settings and want to use it in your css:

It should look like this:

h2 {    font-family: 'Annie Use Your Telescope', arial; }

Additional Notes: 

** yes, with the spaces in the font name! ;-) 

** add one (or more) fallback font(s). choose something like arial, helvetica, times, times new roman, serif, sans-serif, ... the last one should be 100% available, just to make sure.