how to link google font in the css code example

Example 1: add google font html

<link rel="stylesheet" href="https://fonts.googleapis.com/css?family=Source+Code+Pro"> [Replace your font with the Source Code Pro font.]

Example 2: import google fonts into css

<link rel="stylesheet" href="//fonts.googleapis.com/css?family=Open+Sans:300,400,600,700&lang=en" />